Once a black market electronics marketplace, now an otaku shopper's paradise.

This monument celebrates this shopping district's past history as a feudal silver mint.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

A fearsome dragon clings to a corner of Munich's city hall.

In this truly magical place, rent hasn't been raised since the year 1520.

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

This is the oldest Roman-made bridge in the city still existing in its original state.

A massive marble foot is tucked away in a small alley near the Pantheon.

A forgotten "city of water" underneath the famous Trevi district.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

A Natural History and Science Emporium.

For almost a century, this East Village newsstand has served egg creams to beats, hippies, punks, and everything in between.

Tucked in the back of this amazing antique store is an important piece of medical history.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.