This playground sculpture of an icon from the past is dedicated to the children of the future.

This museum glorifies the humble potato.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

An entire town preserved as a historic landmark.

A smoke stack so large, the Washington Monument could fit inside!

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

"Polynesia on the Plains."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

On the Oregon coast is a natural hole that seems to be draining the sea.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.