This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

This elaborate towering structure was once famed for its revolutionary height.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

These medicine cabinet staples are part of the museum's collection of everyday objects.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

One of the oldest of its kind.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

The oldest surviving botanic garden in the United States.

This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

This imposing 20th-century castle was abandoned before it was ever completed.

Thousand-year-old trees tower within one of the world's only inland temperate rainforests.

This World War II relic let Allied pilots know they were entering neutral airspace.

This antique farmhouse is one of Læsø's rare seaweed houses.

This tiny island is home to the world's largest colony of Northern gannets.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

Go through the looking glass in Tokyo's Wonderland-themed shop.

A gardener's enduring labor of love is spread throughout a small Vermont town.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

This tiny traditional smokehouse is the only one left in this historic fishing port.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

The final resting place of many of Germany's most famous communists.

"The Reptile Man's" very own roadside zoo features an albino alligator.