A historic arboretum and non-conformist, non-denominational park cemetery.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

One philanthropist's extensive collection of knick-knacks and curiosities is now a public museum of oddity.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

This decrepit abandoned building is made all the more eerie by its dark history.

Science fiction's grandfather has a fittingly marvelous tomb.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

The resting place for anonymous victims of the Danube's dark waters.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

After an epic flood washed away its enslavers, this city has been part ghost town, part cultural wildcard for the past three centuries.

All that remains of this Massachusetts town, demolished in the name of progress, is a stone marker.

This once luxurious Catskills resort is now a haunting ruin.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

Books you don’t need in a place you can’t find.

A former copper mine which became a truly unsuccessful prison.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.