2

Continents

3

Continents of the World

3

Trenches of the World

4

Maddy's Maryland Diary

4

Maddy's Indiana Diary

3

Juan Ponce de León

3

The Earth

4

Maddy's New Mexico Diary

4

The American Revolution

4

Maddy's Virginia Diary

4

Maddy's North Dakota Diary

4

Maddy's Iowa Diary

3

Bays of the World

3

Amazing Earth - Part 1

4

Maddy's Rhode Island Diary

4

Maddy's Michigan Diary

4

Maddy's Connecticut Diary

4

Maddy's Kansas Diary

4

Maddy's Pennsylvania Diary

4

Bazaruto Archipelago, Mozambique

4

Nile River, Egypt

4

Maddy's Minnesota Diary

3

Amerigo Vespucci

4

Maddy's Ohio Diary

4

Maddy's New Hampshire Diary

4

Maddy's Tennessee Diary

4

Maddy's Massachusetts Diary

4

Maddy's New Jersey Diary

3

Capes and Peninsulas of the World

4

Maddy's West Virginia Diary