Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

This striking art museum holds an amazing series of curiosity cabinets.

A unique botanical garden housed in three giant geodesic domes.

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

Robots, lasers, and whoopee cushions, oh my!

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

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A bizarre house filled with an astounding array of collections.

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

The legendary building that needed ghostly approval before being built.

World's largest collection of serial killer artwork and other macabre exhibits.

This municipal playground was co-created by the father of one of the most playful characters ever.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

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

An essential stop before plundering, BYO Cutlass.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

Step into a pastel time capsule where candy is truly dandy.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.