Since ancient times these picturesque springs have been providing bathers with healing waters.

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

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

A steaming, boiling hellscape sources Hokkaido's thermal baths.

One of the last free public hot springs is decorated with hippie art.

A little-known hot spring haven right below the highway.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Iran's colorful terraces are a rare geological masterpiece.

A secluded natural oasis hidden deep along a rainforest trail.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

These mountain hot springs have seen power struggles, doomed romances, and a generalissimo's attempted escape from mutiny.

Sculptures, jams, and the wild west collide at this folksy retreat.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

After years of being casually peed on by humans, this tree is peeing back.

Peeing dogs guard the Roman hunting goddess atop a fountain at France’s Château de Fontainebleau.

When you've got to go, you've got to go.

A statue erected on an infamous cliff where young boys would hold dangerous "pee offs" to prove their mettle.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Meet the bronze beloved pet to a family of famous peeing statues.

Brussels' favorite peeing boy has a sister.