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

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

Ancient snack bar of the Roman Empire re-opened.

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

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

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Historic funicular railway, believed to be the shortest railroad in the world.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The "lovely red Vega" of the legendary record-settling pilot.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This historic national park is covered in the stunning ruins of red rock pueblos.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.