This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

An unusual manor of stunning beauty, born out of a crippling disease.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

The ruins of a lighthouse on the island Amelia Earhart never reached.

Island of trash twice the size of Texas floats in the Pacific.

The world's largest aggregation of great white sharks is at a mysterious spot in the middle of the ocean.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

This WWII plane died a quiet death, and is now a garden eel playground.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This museum is rotten with a century of wax medical deformities.

The middle finger of modernity.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

A collection of objects supposedly singed by the hands of souls in purgatory.

The underground sanctuary of a mysterious ancient cult.

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.

Magical-looking cottages that inspired one of the most famous animated films ever.

The largest collection of two headed animals in the world.

A library of rare occult books in Los Angeles.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

Medical and zoological curiosities for sale.

Traveling collection of amazing automata.