The ancient Greeks spoke of the Sev

The ancient Greeks spoke of the Seven Wonders of the World. Recently, some engineers came up with this lisf of the seven wonders of our modern world.
the panama canal, begun in the 1880 s, wasn't finished until 1914. It join the Atlantic and Pacific oceans. Engineers describe the canal as a victory of humans over geography : Worker dug huge amounts of land and tamed rivers.
for 40 years after it was completed in 1931, the Empire State Building, in New York city wall the tallest building in the world. Amazingly this 102 story building was constructed in just 410 days.
The Netherlands North sea Protection world is another victory over geography . the Netherlands which is below sea level , was often flooded by the north sea and by river . Then, Between 1972, a dam was built to shut out the sea . twenty years later, dams and canals were built to control the rivers.
the Golden Gate Bridge , completed in 1937 , was also a challenge for worker .San Francisco Bay has very strong wind and rough waves . the Golden Gate is still the world tallest bride . It has enough steel to wrap around the world three times.
At 1,815 feet, the CN Tower, in Toronto, Canada, is one of the world's tallest free-standing buildings. Completed in 1976, the tower is used for TV and radio broadcasting.
The Itaipú Dam, completed in 1984, goes across the Paraná River at the Brazil-Paraguay border. It is the world's largest hydroelectric plant.
Completed in 1994, the Channel Tunnel joins France and England. The "Chunnel" is a remarkable convenience: Cars, buses, and trucks are all carried through the tunnel by train.