Attracting 8.6 million visitors annually, Navy Pier is Chicago's lakefront playground. It was designed for shipping and recreation and has evolved into a major Midwest leisure destination.
More than 270 miles long, 18 miles wide, and a mile deep, this vast canyon is known throughout the world for its size and beauty.
It took 14 years and a team of 400 sculptors, led by Gutzon Borglum, to complete this massive "Shrine of Democracy," dedicated in 1941.
Hoover Dam was built during the Great Depression, between 1931 and 1936. The project employed thousands of workers, cost more than 100 lives and gave rise to Boulder City.
The pool, measuring some 2,000 feet long, was built soon after the 1922 dedication of the Lincoln Memorial; both were designed by architect Henry Bacon.
Created in 1959 by Jose de Creeft (1884-1982), this bronze sculpture features characters from the 1865 Lewis Carroll story‚ "Alice in Wonderland."
The trade center's twin 110-story towers, the planet's tallest buildings when they officially opened in 1973, were destroyed in the September 11, 2001, terrorist attacks against the U.S.
