4
Mount Rushmore
4
Landmarks of the United States
4
The Statue of Liberty
4
The White House
4
Hoover Dam
4
Grand Canyon
3
A Capitol Dream
4
The Space Needle
4
U.S.S. Arizona Memorial at Pearl Harbor
4
Gateway Arch
4
The Golden Gate Bridge
4
Washington Monument
4
The Willis Tower
2
US Landmarks
4
Niagara Falls