Community bookshelf of 25-foot-tall book spines.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

This 19th-century fountain's namesake animal isn't what you think it is.

An eatery for UFO seekers on the Extraterrestrial Highway.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The headquarters in Salem doubles as an occult art gallery.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

There are eight natural springs around town, each with a slightly different taste.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Try not to get slimed in Tribeca.

Tucked in the back of this amazing antique store is an important piece of medical history.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

Stolen goods adorn the organ at Old North Church.

Tragedy on Little Brewster Island memorialized.

"Mock all and sundry things, but leave the saints alone."

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

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

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Largest lake in Great Britain measured by surface area.