This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

The glacier tucked within a New Zealand rainforest.

This cruise ship-turned-warship sank during World War II, and is now a world-renowned dive site.

The U.S. military dumped millions dollars worth of goods off a beach in Vanuatu, purely to spite the British and French.

One of the world’s oldest surviving convict prisons, once the scene of daring escapes and riots.

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

Clusters of huge boulders in the Australian Outback.

Thousands of lawn gnomes have infested this Australian roundabout.

Alien rock formations grown from the sands of an Australian national park.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

Wild seas have created two spectacular formations just a stone's throw away from each other.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.