This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This is not your typical jungle gym.

A chessmaster's dream destination.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A mocking tribute to the past and modern leadership of Prague.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

The museum chronicling a treasure hunter's dream, fulfilled.

An oversized metal construction of Billy Tripp's moods going through life.

This simple, broken column marks the final resting place of one of America's most famous explorers.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Pompeii's less famous neighbor is still revealing her secrets.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

A monument celebrating the idea of reaching inaccessible places.

"We Seceded Where Others Failed."

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

A celebration of capitalism in Midtown.

The former sign of this immortal music venue is just that--undying.