This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

340 bicycles, 65 feet high.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

A trash dump made beautiful by nature's power.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

A castle built by an eccentric medieval enthusiast in rural Ohio.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

This secluded walking trail is a hidden gem of a Pittsburgh park.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

A quirky collection of outsider art made from automobile parts.

Vast stretch of tide-pools with a unique Moroccan charm.

Morocco's Argania trees are infested with nut-hungry goats.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.

God's Saharan sandbox of wrath.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.

One of the most spectacular canyons in the world.

The world's largest concentrated solar power plant.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

A fortified city, home to a remaining population of five families

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

This charming candle shop has been in business since 1789.