A patchwork of ruins from various civilizations in one of the world's oldest continually inhabited cities.

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

After years of slow decline, a derelict Gothic castle is now being restored to life.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

A 66-million-year-old rock formation stands tall over Mumbai, offering stellar city views.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

Prehistoric animals decorate this popular outdoor park.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

This feline raises a friendly paw at drivers barreling toward the freeway.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

A little known Colombian theme park of giant curiosities.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

A glittering Thai Buddhist temple in suburban Pennsylvania.

A spiritual sanctuary in a natural cave.

This charmingly homemade amusement park has been growing for 40 years.

Massive prehistoric mammals used these stones as oversized scratching posts.

Over one million bird-related artifacts await.

A meditative space out of a fantasy story.

An old California photo stand has been turned into a shrine to the cozy art of crochet.