A modernist landscape of water and sci-fi concrete.

Granting the right of way to ships over surface traffic since 1917.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This sculpture garden in Death Valley makes you feel like you've slipped into some alternate reality.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

A hidden "place of interment for gentlemen."

Eastern Bloc nostalgia, anybody?

"Unity, Creativity, Beauty."

An homage to the medieval rulers of Bulgaria.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This arts and culture cultural center explores the diverse cultural heritage of the American West.

An errant donkey ushered in a new era of mining in Nevada.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

A land of debatable treasure.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

This former lieutenant governor's home is brimming with curiosities.

Its founder calls it a "proletariat art renaissance".

An eccentric millionaire's personal curio collection includes at least one shrunken head.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.