The Lighthouse of Alexandria was a towering structure built in the 3rd century BC on the island of Pharos in Alexandria, Egypt. It was one of the tallest man-made structures in the world for many centuries and was considered a marvel of engineering.

Gustave Eiffel was a French engineer and architect who is best known for designing the Eiffel Tower. The tower was built as the entrance arch for the 1889 World's Fair in Paris, France.

The Danyang–Kunshan Grand Bridge is a 164.8-kilometer (102.4-mile) long viaduct on the Beijing–Shanghai High-Speed Railway in China. It is the longest bridge in the world.

Sputnik 1 was the first artificial satellite to be launched into orbit around the Earth. It was launched by the Soviet Union on October 4, 1957.

Burj Khalifa is a 828-meter (2,717-foot) tall skyscraper in Dubai, United Arab Emirates. It is the tallest building in the world.

Apollo 11 was the first manned mission to the moon. It was launched by the United States on July 16, 1969, and landed on the moon on July 20, 1969.

Three Gorges Dam is a hydroelectric power plant located on the Yangtze River in China. It is the largest hydroelectric power plant in the world.

Tokaido Shinkansen is a high-speed rail line in Japan. It was the first high-speed rail line in the world when it opened in 1964.

Hartsfield–Jackson Atlanta International Airport is the largest airport in the world in terms of passenger traffic.

Obninsk Nuclear Power Plant is the first nuclear power plant in the world. It was built in the Soviet Union and began operating in 1954.

Bhadla Solar Park is a solar power plant located in Rajasthan, India. It is the largest solar power plant in the world.

Grandpa's Knob Wind Farm is the first wind farm in the world. It was built in Vermont, United States in 1981.

The Geysers Geothermal Complex is the largest geothermal power plant in the world. It is located in California, United States.

La Rance Tidal Power Station is the first commercial tidal power plant in the world. It was built in France and began operating in 1966.

Aguçadoura Wave Park is the largest wave power plant in the world. It is located in Portugal.