This old residential building was once the largest flour mill in the world.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

One of two giant blue cockerel statues erected with an intentional double meaning.

When flour explodes, it's not a pretty sight.

A terrific purveyor of natural history objects and curios.

This striking art museum holds an amazing series of curiosity cabinets.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

Frida Kahlo's childhood home, now a museum of her life and works.

You'll find just about anything in this funky Tbilisi flea market.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

A mountain pass in Bulgaria's Balkan Mountains was the site of four historic battles.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The highest point in Texas is capped by a big silver pyramid.

The oldest continuously operating church in California.

Haunting and beautiful trees, doomed to die.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Mysterious glowing orbs float through the desert night.

A Prada store in the West Texas desert that is never open for business.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

These two monoliths have stood at the entrance to the neighborhood since the days it was called "Hollywoodland."