This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

This folk art compound was built by a fortune teller on the advice of three people from the future.

Secret gardens just a few miles from downtown Atlanta.

Proceeds from this colorful teahouse in a historic Atlanta neighborhood directly fund women’s education in northeast India.

An optical illusion found amid a logged redwood forest.

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

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

An unfinished rail tunnel that has since been used to house cheese and bats.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

A natural sandstone bridge hidden in the Sewanee forest.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Ruins of a Carnegie family mansion on Cumberland Island.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

This modest marker near Notre Dame identifies the very center of Paris.