In an odd geographic anomaly this city borders two different states on opposite sides of town.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

This demon atop the Notre-Dame de Paris looks utterly bored.

Inside a former cabaret, seven floors of erotic art.

A French artist's vague warning hangs over Belleville.

An unusual number plate signifies the building's saucy past.

This little-known relic crypt holds stolen parts of a Roman Empress.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Statue of death tucked in the University of Medicine courtyard.

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A haunting collection of the vanished and disappearing natural world.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

A former major munitions plant that has been converted into a sprawling art space.

A huge boat-shaped hotel with a blood red pool and other oddities.

Fast food feels like fine dining at this award-winning modern Georgian building.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

A carriage house converted into what resembles an 11th-century English manor house

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.