Home to items never before seen by the public.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This jail which was in service for over a century is now open for curious visitors.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Hear the quietest sound from across the dome.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

"Only the devil could play golf here."

The most loyal of little dogs, or a Victorian era publicity stunt?

The fountain marks the area where hundreds of accused witches were burned at the stake.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

100 massive sculptures in the Hudson River Valley.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.