Dramatic river bend surrounds a natural red-rocked pedestal.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An emerald-green grotto just a short trip from Austin.

On Japan's Tashirojima Island, cats are king.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

An eerie, derelict amusement park in Berlin.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

On the Oregon coast there is a natural hole that seems to be draining the sea.

World's first "penitentiary," meant to be humane, drove men insane.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Try not to get slimed in Tribeca.

Home to over 300 antique cars and motorcycles, including Thomas Edison's Model A.

255 feet of suds, scrubbers, and blow dryers.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A quick and simple solution to Cambodia's train woes.

A former barn converted into a massive train diorama.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Tiny historical streetcars wind through a small scale version of Crescent City in this whimsical train garden.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

An elderly widow still operates the incredibly detailed model railroad she and her husband built by hand.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.