A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The sign at the garden gate reads: "These Plants Can Kill."

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

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

This small-town Connecticut restaurant gives each diner a free book from its vast library.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Hundreds of hidden passageways weave through the old quarters of Lyon.

This natural crater along the coast of Jersey may take its name from the devil statues who have watched over it.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

The final resting place of soldiers' loyal canine companions.

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

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

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

A small Richmond island dotted with the remnants of hundreds of years of history.

America's first public mental health facility.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.