The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

Back in the day everyone who was anyone played this historic western theater.

The two massive guns that defended Cartagena Bay.

The wreckage still sits at the exact spot the plane crash-landed in 1945, carrying 1,000 pounds of explosives.

This high-perched pachyderm marks the memory of not one, but two elephants gunned down in small New England towns.

Formerly a brutal Nazi colony, this Chilean village was remade as a (controversial) German-themed tourist trap.

This highest bridge in the world spans such a great chasm that it had to be established using rockets.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A forensic lab dedicated to fighting crimes against wildlife.

A bright California graveyard with a decidedly dark side.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

On the windswept Dakota plains there is a memorial to circus workers who were struck down by lightning.

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.

Where hundreds of Japanese civilians committed suicide to avoid being captured by American soldiers during WWII.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

This open-air museum was originally a World War II testing ground for German missiles and rockets.

A dilapidated dock tells the story of Titanic's missed arrival.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

The site of the first battle of World War II.

The ruins of a rehabilitation center for World War II vets can be found in the Westminster Ponds Conservation area.