4

The White House

4

Niagara Falls

2

Birds of Prey

4

Mount Rushmore

4

Maddy's Rhode Island Diary

4

Grand Canyon

3

Neil Armstrong

4

Yellowstone National Park

2

Animal Hockey Team

4

Maddy's Alaska Diary

4

Maddy's Arizona Diary

4

Chip's Tips on United States

4

Washington Monument

4

Maddy's Wisconsin Diary

4

The Mississippi River

4

Chip's Tips on South Africa

1

Birds - Part 1

4

The Space Needle

4

The Willis Tower

3

Common Birds Book 2

4

U.S.S. Arizona Memorial at Pearl Harbor

4

Maddy's Pennsylvania Diary

3

Charles Darwin

4

Gateway Arch

4

The Statue of Liberty

3

Archipelagos of the World

4

Chip's Tips on Zambia

4

Chip's Tips on Mexico

4

The Golden Gate Bridge

4

Chip's Tips on Nigeria