Monasteries on rock pillars, once accessible only by frayed ropes.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Famously misunderstood wonder of the ancient world

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

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

On Japan's Tashirojima Island, cats are king.

Walk in the footsteps of the gods and straddle two tectonic plates.

Three columns of volcanic rock shoot out of the ocean.

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

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Japanese national treasure originally built in 593 CE.

Hot springs monkey spa in the middle of Hell's Valley.

Ruins of a German Castle on top of a towering stone pillar.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.