Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

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.

Macabre astrological automaton clock dating to the late 1400s.

The fairy tale castle of the "fairy-tale king."

A memorial to honor those who were killed in a Bastille Day terror attack in Nice.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An incarceration museum on the spot of possibly the oldest prison in England.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A wonderfully curated used bookstore in an airport.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.