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

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Where America's first doomsday cult awaited the end of the world.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A layered tribute to the work of mosaicist Isaiah Zagar.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Hidden beneath the streets of London is a secret subway that only carried mail.

This 1920s Dutch barge is now a floating bookstore.

A tongue-in-cheek arcade where the games are based on everyday life.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Where you can hail your favorite fictional commanders-in-chief.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

This grand gothic brewery has been pumping out suds for over a hundred years.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

This secluded walkway overlooks a magnificently wild London green space.

This home on a quiet suburban street is completely covered with vibrant mosaics.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.