This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Countless grotesque faces stare out from this eerie Prague art wall.

This former quarry is now a picturesque gorge that hides a sunken lake.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

An early-19th-century hotel with a past that is steeped in the Civil War.

This kitschy tavern is also home to rare early editions of "Treasure Island."

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

A statue honoring 44 continuous years of greeting passing ships.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The miraculous hydrant that saved the Mission District in 1906.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

An essential stop before plundering, BYO Cutlass.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Thousands of turbines whir at at the origin of North American wind power.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

Although now a decaying ruin, this stone cabin's history includes several notable figures.

A spiritual vortex among the red rocks in Sedona.

From a T-rex to a teapot, a cast of artificial fossils illustrates New Mexico's history.