The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This ancient Roman town was revered for the healing waters of its sacred spring.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This lush, scenic spot was carved by the turquoise waters of the Radovna.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

One of the best examples of the modernist movement in Madrid.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Once a resting spot for King Fernando VII.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

The world's largest wooden structure.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

A beloved carnival gets a modern makeover in Los Angeles.

This stately clubhouse has showcased German-American culture for over a century.

The largest historic preservation organization in the United States.

A beautifully eclectic mix of architectural styles.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.