The signs of a long buried road can still be found hidden beneath a London sewer grate.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Designed by the architect who also had a hand in crafting the Westminster Abbey and Bristol Cathedral.

This knockout museum lies in a sleepy corner of London.

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

Catacombs turned marketplace.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This chimerical bridge/tunnel appears to dead end right into the sea.

Swedish skyscraper with a 90° twist.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This handsomely carved wooden church is more than 800 years old.

Home to three historic ships from the age of Vikings.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

The topiary maze at the Habsburg hunting lodge.

A 700-year-old drinking fountain turned charity for the less fortunate of Zurich.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.