An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

Bacteria and algae give the salty water its bubblegum hue.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A beautiful but toxic fountain of mercury.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The many—66 to be exact—faces of the German forest.

This former steel and coal plant is now a neon-lit industrial fantasia.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Dine amidst exotic plants at this former royal greenhouse.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

People can't get enough of these adorable Japanese photobooths.

This secret Australian garden was built on love after a man planted a random bulb he found in the ocean.

Is there such thing as too many fruit bats? Not anymore.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

The tangled roots of a giant banyan tree have fully reclaimed the ruins of this abandoned warehouse.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.