An enormous, inside-out glass globe built in 1935.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The Boston square dedicated to the dark poet who was born nearby.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

A rare specimen of an iconic extinct animal in downtown Sydney.

Handcrafted thermal spa washes away each night with the tide.

The "Rocky Horror Picture Show" character has a hidden camera that broadcasts people doing the "Time Warp."

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Known for the tunnel that leads visitors to the water.

The world's only museum devoted to the wonders of fluorescence.

Once the home of a hermetic monk, this cave now houses a small church.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Real bones which are said to have belonged to a Polish dragon.

This hidden collection of everyday objects illustrates life within communist Poland.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

One of the world's largest collections of medieval religious art.

Berlin's old airport.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.