Renaissance villa and gardens complete with a tormented colossus.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This geothermal hot spring hides beneath a slowly growing mineral dome.

A reproduction of earth's many biomes.

Rustic natural hot springs in the deciduous rain forest.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

The largest earthwork effigy in the world.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Stunning wetlands ablaze with pink lotus flowers.

Make your reservation to have coffee with some kitties.

This series of Scottish caves has no clear purpose other than baffling historians.

This spa theme park lets its guests take a dip in pools of coffee, wine, or ramen broth.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A 20-meter (65-foot) robot towers over Tokyo Bay.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

The largest self-built castle in the U.S., six decades in the making.