Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Macbeth's infamous "Great Birnam Wood."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A castle built by an eccentric medieval enthusiast in rural Ohio.

The largest self-built castle in the U.S., six decades in the making.

London's smallest police station is barely the size of a phone booth.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A plaque marks the underground site of one of London's "lost rivers."

Pilgrimage site for star-crossed lovers.

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A miniature village mimics the surrounding buildings so well it includes itself.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

The trials and tribulations of marking Poe's grave.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This charming English house was once the home of England's most famous poet.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

This tangled English forest looks like something right out of a fairytale.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.