After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Opulent downtown movie theater now houses cars as an indoor parking garage.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

This striking statue brings a scene from the African savannah into central London.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

This ancient Egyptian obelisk still bears the wounds of World War I.

The medieval woodcut-style artwork chronicles life in medieval London.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

The bones of two medieval royal lions were discovered at the historic fortress.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

It's a mystery why these remains were found with no traces of their bodies in sight.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

An architectural oddity hides in plain sight on this iconic London bridge.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.