Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Hundreds of protractors affixed to surfaces all over the city.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

A beautiful oddities shop crammed with strange and morbid curiosities.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A famous burial ground with a history both grim and literary.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This South London cemetery holds the remains of more than 15,000 people.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."