The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

The translucent turquoise hue of these natural swimming pools comes from a high concentration of minerals.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

One Costa Rican island is so beset by illegal shark poachers that the local rangers have built an entire bridge with their confiscated gear .

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

There is a small island in the Gulf of Nicoya where the only human inhabitants are dead.

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

Balanced rock sculptures pay tribute to a murdered conservationist and his pioneer wife.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

In a New Jersey cemetery, the final resting place of two brothers who fell victim to a deadly mushroom.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The Spanish king's private bathroom embraced the idea of a porcelain throne.

Don't be surprised if you see a long-necked dinosaur peeking out from among the trees in Northgate Park.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

The imprints of astronaut Charles Duke’s moon boots live on at Myrtle Beach’s official South Carolina Hall of Fame.

Cave where bat-eating snakes hang down from the ceiling.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Beirut's thinnest building was the result of feuding brothers.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

World War II ended before these tunnels built to protect vital oil from Japanese bombs were ever used.

This large lake in Central Australia contains an estimated 600 million tons of salt.

Kakadu National Park is known for its stunning beauty and its rock art, which represents the longest historical records of any continuous civilization on Earth.