The walls and streets of the ancient city are peppered with penises.

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

Ancient snack bar of the Roman Empire re-opened.

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

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

This monumental fountain has moved around the city multiple times.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

An exquisite Baroque church in Vienna's old town.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

The Habsburgs' royal collections of art and wonders.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The final resting place for the remains of 143 Habsburg royalty.

Baroque celebration of the end of the Great Plague of Vienna.

Designed as a reminder of one of the darkest moments in Austrian history.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

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

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.