A collection of 20th-century automata, penny arcade games, and musical contraptions.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Its buzzing collection honors vibrator history.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

This former coal gasification plant found a curious second life as a popular public park.

The magic's in the hole!

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

A wall of chewing gum moonlights as collective art.

A giant Troll lurks under one of Seattle's oldest bridges.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A fitting attraction for the corn capital of the world.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Community bookshelf of 25-foot-tall book spines.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This shop for all your super spy needs hides an educational secret.

Trade in that pesky human soul for cold-hard circuits.

The city is full of whimsical portals to another world.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.