An extraordinary "City of Caves" carved from solid stone.

Rock-cut cave complex filled with ancient Buddhist artwork.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The world-record holder for the longest bridge stretching continuously over water.

The second oldest continuously operating bar in Louisiana.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The final resting place of New Orleans' most famous voodoo priestess.

Elevated freight railway turned wildly successful urban park.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Huge abstract sculptures of the Puerto Rican Flag.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

The 606 is a decade in the making.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

The beloved home to all publications indie, erotic, and punky.

A hot dog stand where the heads are just as hot as the dogs.