The narrowest street in Paris.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This banal Parisian entranceway is not what it seems.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The trials and tribulations of marking Poe's grave.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

Meet some of the most prominent figures in Black history through life-sized wax models.

Eighteen miniature death-scene dioramas.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

A super-sized promotional trick that is now a D.C. landmark.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

A historic neighborhood church is reborn as a psychedelic arts collective.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.