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

This legendary urban waterfall creates a dazzling display of rainbows.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

In 2018, Pohoiki Road was severed by lava flowing from the eruption of Kilauea.

A controversial memorial at the place where Captain Cook met his violent end.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Home to the deepest rift anywhere on Earth.

A giant desert bird that once swung music fans at Coachella now has a home in a nearby traffic circle.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

Elvis's own personal tropical hideaway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

An electrifying collection of gadgets and literature from the 16th through 20th centuries.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

This colorful statue welcomes visitors to a Barcelona park.

These memorials built by an eccentric bachelor on the side of Interstate 5 cause both wonder and traffic accidents.