Prehistoric

From mammoths bizarre sea creatures, we're digging into the history of towering beasts in Chicago.

From unusual early mammals to battling dinosaurs, Denver holds the key to hidden ancient mysteries.

New York has evolved from dinosaur stomping grounds to an international mecca.

Texas has been the home of the large and in charge since prehistoric times.

Even in prehistoric times, Washington, DC, was a land of constant conflict and battle.

Prehistoric Los Angeles was filled with more than just famous actors and wannabe starlets.