Most famous work of one of Frank Lloyd Wright's sons.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The quintessential Japanese rock garden has existed for more than 500 years.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This glamorous old building is said to have inspired the Tower of Terror.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A fantastic castle rumored to be the birthplace of King Arthur.

Pompeii's less famous neighbor is still revealing her secrets.

The underground sanctuary of a mysterious ancient cult.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A beautiful but toxic fountain of mercury.

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

The yawning maw of this pagan visage is said to bite off the hands of liars.

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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The second oldest continuously operating bar in Louisiana.

Quite simply the largest tree in the world (by volume).

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.