Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The heads of two giant mythological water horses honor Scotland's horselord past.

This little museum in the town where zombies were born celebrates the living dead.

A marvel of Byzantine engineering under the streets of Istanbul.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

Surrounded by lonely toys, this Massachusetts gravestone marks the final resting place of six children who were murdered by poverty.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

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

A wunderkammer hidden on the top floor of the Hartford statehouse.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

Towering basalt columns, a creation of fire and ice.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

A spectacular cave and a beguiling lake.

Science fiction's grandfather has a fittingly marvelous tomb.