It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

An abused and forgotten metropolis, abandoned for centuries.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Moss and stone turn this waterfall into an otherworldly liquid veil.

Turnip-shaped island just off the Michigan shore in Lake Huron.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

A Hawaiian stairway to heaven—that you can't climb.

Tubing through a cave lit with glowworms is a magical underground experience.

A battle between nature and architecture in the Cambodian jungle.

Staves, storm-calling, and of course, necropants.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Walk behind a 50-meter-high waterfall.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

The angel of death appears to weep black tears at this grave marker.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

A long-disputed island that Denmark and Canada claim by periodically alternating flags and bottles of liquor.

All that remains of Jacques Cousteau's 1960s underwater "village."

This uninhabited volcanic island is the most remote in the world.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.