A nouveau-riche hilltop “palace” that once provided lodging to more than a hundred fishermen.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Sip creative cocktails in the former vault of the Riggs Bank.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

D.C. once had its own tiny rival to the New York Stock Exchange.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

A dam that moonlights as a gigantic, brutalist waterslide.

This small museum is dedicated to the study of coprolites, or fossilized poop.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

Version of the French Riviera destroyed by the sea.

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

100-year-old shipwreck you can walk up to at low tide.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.