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CN Tower – Canada
The CN Tower or Canadian National Tower is a communications and observation tower in Downtown Toronto, Ontario, Canada. Standing 553.33 metres (1,815.4 ft) tall, it is the world’s 5th tallest free-standing structure. It remains the tallest free-standing structure in the Western Hemisphere, a signature icon of Toronto’s skyline, and a symbol of Canada, attracting more than two million international visitors annually.
Empire State Building – United States
Another tall structure, the Empire State Building is a 102-story landmark skyscraper and American cultural icon in New York City, United States. It remained the world’s tallest building for almost 40 years, from its completion in 1931 to 1972, when the north tower of the World Trade Center was completed and took its place as the world tallest building.
Channel Tunnel – United Kingdom & France
The Channel Tunnel also called the Euro Tunnel is a rail link under the English Channel between Cheriton near Folkestone, Kent, and Coquelles near Calais. The Channel Tunnel is 50 km (31 mi) long, out of which 39 km (24 mi) are underwater; it comprises two railway tunnels and a service tunnel. The tunnel is one of the greatest civil engineering projects of the 20th century and sees about 600 trains pass each direction every day.
Panama Canal – Panama
The Panama Canal is a major ship canal that traverses the Isthmus of Panama in Central America, connecting the Atlantic and Pacific Oceans. Construction of the canal was one of the largest and most difficult engineering projects ever undertaken. The 50 miles long (80 km) international waterway known as the Panama Canal allows ships to pass between the Atlantic Ocean and Pacific Ocean, saving about 8000 miles (12,875 km) from a journey around the southern tip of South America.
Eiffel Tower – France
The Eiffel Tower, or “La Dame de Fer” (the iron lady) is an iron lattice tower located on the Champ de Mars in Paris. The tower is the tallest building in Paris and the most-visited paid monument in the world. The tower stands 324 metres (1,063 ft) tall, and was built as the entrance arch to the 1889 World’s Fair.