One of America's first dinosaur parks gives a window into Depression-era paleontology.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

The designated Jewish quarter in Fez dates back to the 15th century.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

Traditional 11th-century outdoor tannery.

Crumbling necropolis set high above Fez.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The corpse bride of Portugal.

Although resembling a grand Buddhist temple, this structure is actually the largest mosque in China.

An ancient fortification lives on in this Chinese city.

With its vast selection of books, comics, and records, this nearly 70-year-old open-air market always rewards the patient browser.

A beautiful riverside mansion where the intellectual life of early-20th-century Argentina flourished.

Trash-filled shrines to an unofficial saint known for her endless breast milk dot the highways of Argentina.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

This Costa Rican chapel is the most metal church in the world, literally.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

This unusual subway stop was originally a real estate office.

A reconstruction of a classic mansion on the island of Delos was designed for a historian and archaeologist.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

A remarkably opulent mansion with a tragic history.