Bermuda Triangle (Unsolved)

Who Was Stan Lee?

Loch Ness Monster (Unsolved)

Who Was Helen Keller?

Pyramids of Egypt (Unsolved)

Who Was Thomas Jefferson?

Bigfoot (Unsolved)

What Can a President Really Do?: A Good Answer to a Good Question

Ghost Ship (Unsolved)

Dionysus

Amazing Immortals: A Guide to Gods and Goddesses Around the World

The Complete Book of Presidents & States, Grades 4 - 6

Captain Kidd's Treasure (Unsolved)

Where Is the White House?

Battlefield Ghosts (True Hauntings #2)

Who Pays Taxes?: A Good Answer to a Good Question

Sacagawea

The Untold History of the United States, Volume 1: Young Readers Edition, 1898-1945

What Was the Great Depression?

U.S. History Maps, Grades 5 - 8