The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

An icy lake tucked among jaw-dropping alpine panoramas.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

Since ancient times these picturesque springs have been providing bathers with healing waters.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

The largest 19th century panorama in the world still in-situ.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The oldest operating pharmacy in the world features 800-year-old recipes.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

Geothermal waterfalls in Tuscany.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Thousands of well-dressed mummies below a monastery.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.