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

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

Images chiseled into the basalt here date back an estimated 300 years.

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

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

An ancient quarry rediscovered by a dog and claimed by biblical kings, a German cult, and the Freemasons.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

The home of the Dead Sea Scrolls is an abstract modernist dream.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Soaring over the Niagara Whirlpool since 1916.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A spiritual vortex among the red rocks in Sedona.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Narrow slot canyons in a badland eroded into soft sedimentary rock provide an otherworldly landscape in this remote Nevada state park.