4

Famous Americans: George Washington

4

Maddy's Washington Diary

4

Washington Monument

4

Maddy's Washington, D.C. Diary

3

Caves of the World

3

Coastal Plains of the World

3

A Capitol Dream

2

US Landmarks

2

Map of the United States of America

3

Judge

3

Christopher Columbus

3

Inventors and Inventions

4

Maddy's South Dakota Diary

3

Martin Luther King, Jr.

4

Landmarks of the United States

4

History of the United States

4

The White House

3

Isthmuses of the World

4

Jordan & Justine's Weekend Adventures

4

The American Revolution

4

Maddy's Idaho Diary

4

Jordan & Justine's Weekend Adventures

4

Maddy's New Hampshire Diary

4

Chip's Tips on United States

4

Maddy's Maryland Diary

4

Maddy's Oregon Diary

3

Bays of the World

4

From the American Revolution to the Civil War

4

An Introduction to the History of the United States of America

4

Maddy's Virginia Diary