Tiki luxury on Nob Hill.

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

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

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

A winding path built in secret on the edge of the continent.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The private clubhouse for the members of the Academy of Magical Arts.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Providing the soundtrack to the golden years of the Seattle grunge scene.

This Seattle museum displays the history of the telephone through an impressive collection of telecom equipment.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The site of the climactic scene from the classic horror film is now a historic landmark.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The United States Capitol's former columns still stand.

Eighteen miniature death-scene dioramas.

The seamy, underground secrets of Portland's criminal past.

The only theatre in the world constructed specifically for sound movement.

America's most famous piece of self-built architecture.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Try not to get slimed in Tribeca.

The ghostly remains of an accidental sea.