Toxic waste disaster that founded the Superfund program.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Protecting the dead from opportunistic body snatchers.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A hands-off space for graffiti artists to hone and display their skills.

A 18th century graveyard and its astonishing cortege of macabre iconography.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Secret Swing.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the largest underground systems runs under Canada's largest urban center.

This Toronto garden collects stares and tchotchkes in equal measure.