A statue of the original Pearly King is hidden in a church's crypt.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The television series' iconic giant foot was borrowed from this classical painting.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

The world's oldest family-run magic shop is hidden beneath a bustling London thoroughfare.

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

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

One of the world's largest collections of pathological specimens.

Repository for more than 22 million pickled specimens.

Eighty million natural history specimens call this gargantuan museum home.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

An unusual round church in London with a Templar past.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

Jesus' footprints and the first catacombs in the world.

Cows on a ranch are commonplace, scattered cow bones everywhere? Not so much.