When an ancient supervolcano erupted, some of Nebraska's prehistoric animals were forever preserved in ash.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

To honor a beloved Austin radio DJ a neighborhood bridge has been covered in a loving mosaic.

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

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A cemetery housing wild west legends in South Dakota.

The highest point in Iowa, while not that impressive to mountain states, has earned its own monuments.

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

France's most famous cemetery, with some of its most curious tombs.