3
John Cabot
3
John Smith
4
Buckingham Palace, London
3
Astronauts
4
Belém Tower
4
Chip's Tips on Canada
4
America in the 20th Century
4
Maddy's Virginia Diary
3
Famous Explorers
4
The Space Needle
4
Maddy's Oregon Diary
3
Edmund Hillary
4
The American Revolution
4
Yellowstone National Park
4
Early North American Settlers
4
Chip's Tips on Papua New Guinea
3
Daniel Boone
4
The Tower Bridge, London
4
Maddy's Colorado Diary
4
Maddy's Texas Diary
4
Maddy's Tennessee Diary
4
Maddy's Michigan Diary
4
Maddy's Massachusetts Diary
4
Maddy's Florida Diary
4
Gorillas and Other Primates
4
Maddy's Washington, D.C. Diary
4
Chip's Tips on Botswana
3
Space Exploration
4
Maddy's Maryland Diary
1
Jan and Jim