An ancient city exhumed from the depths of the ocean.

The site of the climactic scene from the classic horror film is now a historic landmark.

An eclectic assortment of medieval architecture in a small Iowa town.

This abandoned gun tower was built to defend the River Thames from a French naval attack.

The Australian terminal of the Pacific Cable that linked the continent to North America.

A big museum full of little worlds.

Five ancient libraries, little changed for centuries, preserve a medieval archive of Quranic lore and civic documents

The site where Michigan launched its first rocket into space lies abandoned in the dense woods along Lake Superior.

Hidden in a hotel parking lot is a strange historical plaque erected by an obscure fraternal society.

This isolated airport in the middle of the Everglades sees more alligators than planes.

A hidden beach at the end of a tunnel of mangrove trees.

Everything you always wanted to know about borates is here.

Just a man taking his prehistoric pet for a stroll.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

The century-old plant starred as the villainous clown's lair in the miniseries based on Stephen King's "It."

The wooden airship was the largest flying boat ever built.

A terrific purveyor of natural history objects and curios.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

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

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

A scenic ravine with an astounding collection of rock art created by the Indigenous people of the Great Plains.