Mount Rushmore is located in the Black Hills of South Dakota.
This amazing sculpture, one of the largest in the world, of the heads of George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln was begun in 1927 and took the sculptor 14 years to complete.
Not far away, a huge sculpture is being carved of Chief Crazy Horse as a memorial to the Native American.
It will be the largest sculpture in the world when it is finished, at 563 feet (172 m) high and 641 feet (195 m) long.
The face of the chiefs horse was completed in 1998; it is nine stories high.