This Boston medical museum features the skull of the famous medical case of Phineas Gage.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The "original web site," this farm in Northern Vermont encourages orb-weaver spiders to build their daily webs, and then sells the preserved masterpieces.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

This unusual building straddles two countries.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Tubing through a cave lit with glowworms is a magical underground experience.

The winter home of millions of migrating monarch butterflies.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.