An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

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.

Colorful murals by Jean Cocteau hide within this peaceful London sanctuary.

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.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.