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Location: Giza, Egypt; Description: Largest of the Egyptian pyramids, one of the Seven Wonders of the Ancient World; Date of Completion: c. 2560 BCE

Location: Montreal, Canada; Description: Geodesic dome originally designed as a pavilion for the 1967 World Fair Expo 67; Date of Completion: 1967

Location: Various locations across the former Roman Empire; Description: Aqueducts used to convey water from distant sources into cities and towns; Date of Completion: Constructed from 312 BCE onwards

Location: Scotland, UK; Description: Cantilever railway bridge across the Firth of Forth in the east of Scotland; Date of Completion: March 4, 1890

Location: USA; Description: Railway line connecting the East and West coasts of the United States; Date of Completion: May 10, 1869

Location: Paris, France; Description: Wrought iron lattice tower designed by Gustave Eiffel; Date of Completion: March 31, 1889

Location: Isthmus of Panama; Description: 51-mile long artificial waterway connecting the Atlantic and Pacific Oceans; Date of Completion: August 15, 1914

Location: New York City, USA; Description: Art Deco skyscraper and once the tallest building in the world; Date of Completion: April 11, 1931

Location: Dubai, United Arab Emirates; Description: The world's tallest structure and building; Date of Completion: January 4, 2010

Location: New York City, USA; Description: Hybrid cable-stayed/suspension bridge connecting Manhattan and Brooklyn; Date of Completion: May 24, 1883

Location: Border of Nevada and Arizona, USA; Description: Concrete arch-gravity dam in the Black Canyon of the Colorado River; Date of Completion: March 1, 1936

Location: Northern China; Description: Series of fortifications made of stone, brick, tamped earth, wood, and other materials; Date of Completion: Ming Dynasty, roughly 1368-1644 CE

Location: Under the English Channel; Description: 50.45-kilometre rail tunnel linking Folkestone, Kent in the UK with Coquelles, Pas-de-Calais in France; Date of Completion: May 6, 1994

Location: Low Earth Orbit; Description: Space telescope that was launched into low Earth orbit in 1990 and remains in operation; Date of Completion: April 25, 1990

Location: San Francisco, USA; Description: Suspension bridge spanning the Golden Gate, the strait between San Francisco Bay and the Pacific Ocean; Date of Completion: May 27, 1937

Location: Sydney, Australia; Description: Multi-venue performing arts centre, famous for its distinctive sail-like design; Date of Completion: October 20, 1973

Location: Low Earth Orbit; Description: Habitable artificial satellite and space research laboratory; Date of Completion: Fully operational since November 2, 2000

Location: Japan; Description: World's longest suspension bridge with a span of 1,991 metres; Date of Completion: April 5, 1998

Location: Sandouping, Yichang, Hubei province, China; Description: Hydroelectric gravity dam on the Yangtze River in China; Date of Completion: 2006