The Trevi Fountain (Italian: Fontana di Trevi) is an 18th-century fountain in the Trevi district in Rome, Italy, designed by Italian architect Nicola Salvi and completed by Giuseppe Pannini and several others. Standing 26.3 metres high and 49.15 metres wide, it is the largest Baroque fountain in the city and one of the most famous fountains in the world.

The fountain has appeared in several films, including Roman Holiday (1953), the eponymous Three Coins in the Fountain (1954), Federico Fellini's classic La Dolce Vita (1960), Sabrina Goes to Rome (1998), and The Lizzie McGuire Movie (2003).

Photograph taken: April 2009
Where: Rome, Italy

Rosenborg Castle is a renaissance castle located in Copenhagen, Denmark. The castle was originally built as a country summerhouse in 1606 and is an example of Christian IV's many architectural projects. It was built in the Dutch Renaissance style, typical of Danish buildings during this period, and has been expanded several times, finally evolving into its present condition by the year 1624. Architects Bertel Lange and Hans van Steenwinckel the Younger are associated with the structural planning of the castle.

Photograph taken: November 2008
Where: Copenhagen, Denmark

Hyde Park is a major park in Central London. It is the largest of four Royal Parks that form a chain from the entrance of Kensington Palace through Kensington Gardens and Hyde Park, via Hyde Park Corner and Green Park past the main entrance to Buckingham Palace. The park is divided by the Serpentine and the Long Water lakes.

The park was established by Henry VIII in 1536 when he took the land from Westminster Abbey and used it as a hunting ground. It opened to the public in 1637 and quickly became popular, particularly for May Day parades. Major improvements occurred in the early 18th century under the direction of Queen Caroline. Several duels took place in Hyde Park during this time, often involving members of the nobility. The Great Exhibition of 1851 was held in the park, for which The Crystal Palace, designed by Joseph Paxton, was erected.

Free speech and demonstrations have been a key feature of Hyde Park since the 19th century. Speakers' Corner has been established as a point of free speech and debate since 1872, while the Chartists, the Reform League, the suffragettes, and the Stop the War Coalition have all held protests there. In the late 20th century, the park was known for holding large-scale free rock music concerts, featuring groups such as Pink Floyd, The Rolling Stones and Queen. Major events in the park have continued into the 21st century, such as Live 8 in 2005, and the annual Hyde Park Winter Wonderland from 2007.

Photograph taken: April 2007
Where: London, England

Checkpoint Charlie was the best-known Berlin Wall crossing point between East Berlin and West Berlin during the Cold War (1947–1991), as named by the Western Allies.

East German leader Walter Ulbricht agitated and maneuvered to get the Soviet Union's permission to construct the Berlin Wall in 1961 to stop emigration and defection westward through the Border system, preventing escape across the city sector border from East Berlin into West Berlin. Checkpoint Charlie became a symbol of the Cold War, representing the separation of East and West. Soviet and American tanks briefly faced each other at the location during the Berlin Crisis of 1961. On June 26, 1963, U.S. President John F. Kennedy visited Checkpoint Charlie and looked from a platform onto the Berlin Wall and into East Berlin.

After the dissolution of the Eastern Bloc and the reunification of Germany, the building at Checkpoint Charlie became a tourist attraction. It is now located in the Allied Museum in the Dahlem neighborhood of Berlin.

Photograph taken: April 2011
Where: Berlin, Germany

La Barceloneta is a neighborhood in the Ciutat Vella district of Barcelona, Catalonia, Spain. The neighborhood was constructed during the 18th century for the residents of the Ribera neighborhood who had been displaced by the construction of the Ciutadella of Barcelona. The neighborhood is roughly triangular, bordered by the Mediterranean Sea, the Moll d'Espanya of Port Vell, and the El Born neighborhood. This is a good starting point for whatever itinerary there may be to adventure through La Barceloneta. The neighborhood can also be discovered by taking Las Gorondrinas, which leave from the front port of the Columbus monument. This way the marine strip can be discovered, but the real charm of this neighborhood is by getting lost in the side streets or alleyways. Torre Sant Sebastià is the terminus of the Port Vell Aerial Tramway; opened in 1931, it connects La Barceloneta with Montjuïc across Port Vell.

La Barceloneta is known for its sandy beach and its many restaurants and nightclubs along the boardwalk. Over the past several years the quality of the sand on the beach has become a source of continued controversy. In February 2008, the World Health Organization began an inquiry designed to ascertain whether the sand meets WHO beach health and safety guidelines.

With its modernity, La Barceloneta continues to inhabit the scent of salt and marine life. For many, this is considered a luxury. La Barceloneta also attracts many cruise ships to dock.

Among the attractions on Barceloneta's beach are German artist Rebecca Horn's "Homenatge a la Barceloneta" monument, and, where the beach gives way to the Port Olímpic, Frank Gehry's modern "Peix d'Or" sculpture.

In the center of the neighborhood, there is a small museum, called "Casa de la Barceloneta", which is housed in a preserved building dating back to 1761. Admission to the museum serves as an insight into the evolution of the neighborhood and its history. The house has a stone façade with letters and number engraved that are inscriptions of the plots used in construction.

Photograph taken: March 2010
Where: Barcelona, Spain

Villa Borghese is a landscape garden in Rome, containing a number of buildings, museums and attractions. It is the third largest public park in Rome (80 hectares) after the ones of the Villa Doria Pamphili and Villa Ada. The gardens were developed for the Villa Borghese Pinciana, built by the architect Flaminio Ponzio, developing sketches by Scipione Borghese, who used it as a villa suburbana, or party villa, at the edge of Rome, and to house his art collection. The gardens as they are now were remade in the late 18th century.

Photograph taken: April 2009
Where: Rome, Italy

City Hall Square is a public square in the centre of Copenhagen, Denmark, located in front of the Copenhagen City Hall. Its large size, central location, and affiliation with the city hall make it a popular venue for a variety of events, celebrations and demonstrations. It is often used as a central point for measuring distances from Copenhagen.

City Hall Square is located at the southwestern end of the pedestrian street Strøget which connects it to Kongens Nytorv, the other large square of the city centre, passing Gammeltorv/Nytorv and Amagertorv along the way. Opposite Strøget, Vesterbrogade extends into the Vesterbro district and later crosses the border to Frederiksberg. H. C. Andersens Boulevard, Copenhagen's most heavily congested street, and Vester Voldgade pass the square on either side of the city hall.

Apart from the City Hall, notable buildings around the square include Politikens Hus, the headquarters of national daily newspaper Politiken, and Industriens Hus, the headquarters of the DI.

Photograph taken: November 2008
Where: Copenhagen, Denmark

The Emirates Stadium (known as Ashburton Grove prior to sponsorship, and as Arsenal Stadium for UEFA competitions) is a football stadium in Holloway, London, England, and the home of Arsenal. With a capacity of 60,260 it is the fourth-largest football stadium in England after Wembley Stadium, Old Trafford and Tottenham Hotspur Stadium.

In 1997, Arsenal explored the possibility of relocating to a new stadium, having been denied planning permission by Islington Council to expand its home stadium, Highbury. After considering various options (including purchasing Wembley Stadium), the club bought an industrial and waste disposal estate in Ashburton Grove in 2000. A year later, they received the council's approval to build a stadium on the site; manager Arsène Wenger described this as the "biggest decision in Arsenal's history" since the board appointed Herbert Chapman. Relocation began in 2002, but financial difficulties delayed work until February 2004. Emirates was later announced as the main sponsor for the stadium. The entire stadium project was completed in 2006 at a cost of £390 million. The club's former stadium was redeveloped as Highbury Square, an apartment complex.

The stadium has undergone a process of "Arsenalisation" since 2009 with the aim of restoring visible links to Arsenal's history. The stadium has hosted international fixtures and music concerts.

Photograph taken: December 2016
Where: London, England

Gediminas' Tower is the remaining part of the Upper Castle in Vilnius, Lithuania.

The first wooden fortifications were built by Gediminas, Grand Duke of Lithuania. The first brick castle was completed in 1409 by Grand Duke Vytautas. The three-floor tower was rebuilt in 1933 by Polish architect Jan Borowski. Some remnants of the old castle have been restored, guided by archaeological research.

The hilltop can be reached on foot or by lift. The tower houses a museum exhibiting archaeological findings from the hill and the surrounding areas. This building is 3 stories tall and is made of decades old bricks. The museum has models of Vilnius castles from the 14th to the 17th centuries, armament, and iconographic material of the Old Vilnius.

Gediminas' Tower is an important state and historic symbol of the city of Vilnius and of Lithuania itself. It was depicted on the former national currency, the litas, and is mentioned in numerous Lithuanian patriotic poems and folk songs. The flag of Lithuania was re-hoisted atop the tower on October 7, 1988, during the independence movement that was finalized by the Act of the Re-Establishment of the State of Lithuania on March 11, 1990.

A reconstruction of the Royal Palace of Lithuania was completed in 2009, and is located near the base of the hill upon which Gediminas' Tower stands.

Photograph taken: February 2012
Where: Vilnius, Lithuania

O'Brien's Tower marks the highest point of the Cliffs of Moher, a very popular tourist destination in County Clare, Ireland. It is located a short distance from the villages Doolin and Liscannor.

Photograph taken: December 2011
Where: Lislorkan North, Ireland

The Brandenburg Gate is an 18th-century neoclassical monument in Berlin, built on the orders of Prussian king Frederick William II after the temporary restoration of order during the Batavian Revolution. One of the best-known landmarks of Germany, it was built on the site of a former city gate that marked the start of the road from Berlin to the town of Brandenburg an der Havel, which used to be the capital of the Margraviate of Brandenburg.

It is located in the western part of the city centre of Berlin within Mitte, at the junction of Unter den Linden and Ebertstraße, immediately west of the Pariser Platz. One block to the north stands the Reichstag building, which houses the German parliament (Bundestag). The gate is the monumental entry to Unter den Linden, a boulevard of linden trees which led directly to the royal City Palace of the Prussian monarchs.

Throughout its existence, the Brandenburg Gate was often a site for major historical events and is today considered not only as a symbol of the tumultuous histories of Germany and Europe, but also of European unity and peace.

Photograph taken: April 2011
Where: Berlin, Germany

The Dugald Stewart Monument is a memorial to the Scottish philosopher Dugald Stewart (1753–1828). It is situated on Calton Hill overlooking the city of Edinburgh and was designed by Scottish architect William Henry Playfair.

Photograph taken: November 2010
Where: Edinburgh, Scotland

Arthur's Seat is an ancient volcano which is the main peak of the group of hills in Edinburgh, Scotland, which form most of Holyrood Park, described by Robert Louis Stevenson as "a hill for magnitude, a mountain in virtue of its bold design". It is situated just to the east of the city centre, about 1.6 km to the east of Edinburgh Castle. The hill rises above the city to a height of 250.5 meters, provides excellent panoramic views of the city and beyond, is relatively easy to climb, and is popular for hillwalking. Though it can be climbed from almost any direction, the easiest and simplest ascent is from the east, where a grassy slope rises above Dunsapie Loch. At a spur of the hill, Salisbury Crags has historically been a rock climbing venue with routes of various degrees of difficulty. Until recently rock climbing was restricted to the South Quarry, however access is currently banned altogether by Historic Environment Scotland.

Photograph taken: November 2010
Where: Edinburgh, Scotland

La Rambla is a street in central Barcelona. A tree-lined pedestrian street, it stretches for 1.2 km connecting the Plaça de Catalunya in its center with the Christopher Columbus Monument at Port Vell. La Rambla forms the boundary between the neighbourhoods of the Barri Gòtic to the east and the El Raval to the west.

La Rambla can be crowded, especially during the height of the tourist season. Its popularity with tourists has affected the character of the street, which has shifted in composition to pavement cafes and souvenir kiosks. It has also suffered from the attention of pickpockets.

The Spanish poet Federico García Lorca once said that La Rambla was "the only street in the world which I wish would never end."

Photograph taken: March 2010
Where: Barcelona, Spain