Natural Wonders

This cavernous swimming spot doubles as a home to the largest known colony of bats in Central Asia.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

The once and future home of New Zealand's famed Pink and White Terraces.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

A sulfuric hellscape in southern Italy.

The world's most active stratovolcano is almost always erupting.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

Go surfing on this urban wave, "hacked" by local surfers.

Enchanting cave with a river crashing through the roof.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

Bohol's unusually shaped hills turn brown in the summer months.

They squeal, they nosh, they look like predators.

A maritime museum holding the remains of Blackbeard's pirate ship.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Largest cave system in Africa.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.