2
Map of the United States of America
4
History of the United States
4
Chip's Tips on United States
4
Landmarks of the United States
4
An Introduction to the History of the United States of America
3
Diwali
4
Yellowstone National Park
4
Niagara Falls
4
The Willis Tower
4
Mount Rushmore
3
A Capitol Dream
4
Famous Americans: Thomas Jefferson
3
Straits of the World
3
Houses from around the World
3
Sacagawea
3
Thanksgiving Day
3
Glaciers of the World
4
From the American Revolution to the Civil War
4
The White House
3
Halloween
4
The Mississippi River
4
The American Civil War
4
Grand Canyon
4
Washington Monument
4
Early Native Americans
3
Passover
4
The Golden Gate Bridge
4
Famous Americans: Abraham Lincoln
4
The Statue of Liberty
4
Hoover Dam