Golden Gate Bridge, US

The Golden Gate Bridge, a suspension bridge, is a unique structure, spanning the Golden Gate Strait in the United States. The strait is 1.6 km wide and 4.8 km long and connects San Francisco and the Pacific Ocean. The bridge links the city of San Francisco, California, to Marin County. The Golden Gate Bridge is considered one of the wonders of the modern world, as well as the most photographed bridge on the planet.

CN Tower, Canada

The 553.3 m-high CN Tower located in Toronto, Ontario, Canada is another marvelous structure on our list. The communications and observation tower was built in 1976. During the course of 34 years after its completion, the tower was considered the tallest free-standing structure. Today, the CN Tower is the tallest construction in the Western Hemisphere and a symbol of Toronto and Canada.

Empire State Building, US

The Empire State Building is one more architectural wonder on our list. The 102-story and 443.2 m-tall skyscraper is located in Manhattan, New York. It has been recognized as the world's tallest building for 40 years. The structure is featured as a symbol of the American culture in cinematography and literature. The Empire State Building has been visited by over 110 million people.

Itaipu Dam, South America

The Itaipu Dam on the Paraná River is located on the border between Brazil and Paraguay. It is the largest hydroelectric dam completed in 1984. The project has been recognized at the international level. The installed generation capacity of the plant is 14 GW. As for 20 generators installed, 10 generate at 60 Hz for Brazil and ten generate at 50 Hz for Paraguay.

Channel Tunnel, UK and France

The Channel Tunnel (the Eurotunnel) is the fifth amazing structure on our list. It is located beneath the English Channel and connects Dover in England with Calais in France. The tunnel is 50.5 km long and has a 37.9 km underwater section. The maximum train speed through the tunnel is 160 km/h. The Eurotunnel is used for Eurostar high-speed passenger trains, the Eurotunnel Shuttle, and international freight trains. Its construction began in 1988. The Channel Tunnel was opened in 1994.

Delta/Zuiderzee Works, Netherlands

The Delta Works in the Netherlands is believed to be one of the large-scale engineering projects of our time. It involved the construction of dams and dikes, water drainage works, and land reclamation. Along with the Delta Works, the Zuiderzee Works aimed to improve flood protection of the country from the effects of the North Sea and create additional land for agriculture.

Panama Canal, Panama

The Panama Canal is the last impressive structure in our ranking. The artificial waterway in Panama is 82 km long. It connects the Pacific Ocean with the Atlantic Ocean across the Isthmus of Panama. The canal serves as a key conduit for international maritime trade. The Panama Canal is one of the largest construction projects in history. The canal helped to cut travel time between the two oceans.