In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

A late 4th-century BC archaeological wonder located just outside the suburbs of Thessaloniki, Greece.

A hotel and restaurant serving as the mecca of kitsch.

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

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

Stand inside the dark interior of an historic redwood tree that once was used as a general's headquarters.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Home to the "Circus" trees created by Axel Erlandson.

It took years to decode its mysterious messages.

A trash dump made beautiful by nature's power.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

The French leader's hat sits in a glass case at the oldest restaurant in Paris.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

At night, this glittering musical tunnel draws skaters and photographers.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

A living museum of curated gardens honors 4,000 years of agriculture in the Santa Cruz River basin.

A local pineapple cannery once dumped pineapple trimmings off of this pier, with sometimes smelly results.