A 30-acre garden inspired by the principles of modern physics.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Where beautiful signs live on forever.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Olfactory delights in San Francisco's Botanical Gardens.

A tongue-in-cheek arcade where the games are based on everyday life.

This South London cemetery holds the remains of more than 15,000 people.

A beautiful geyser under environmental threat.

A museum of carnival attractions where you are invited to ride the rides.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Its buzzing collection honors vibrator history.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A taste of the macabre Tokyo's ritzy shopping district.

The first declared National Monument in the United States.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Mysterious rocks that ring musically when struck.

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

A 16th-century horror show built in a lovely Italian garden.

The sign at the garden gate reads: "These Plants Can Kill."