Dinosaurs in South Dakota

One of the largest private collections of fossils in the world.

A relic of roadside lore and perhaps the first of its kind in North America.

Just a man taking his prehistoric pet for a stroll.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.