Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Catacombs turned marketplace.

Eighty million natural history specimens call this gargantuan museum home.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One part local history, 99 parts gruesome haunted house.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

Structure built from the skulls of vanquished foes.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A Serbian church lit by chandeliers made of weapons.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

Massive galleon from a box-office bomb docked in Genoa.

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

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The mark of the Devil's horns on a marble column in Milan.