This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

A unique tribute to the millions of animals who served and died for the British military.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

This small collection of rare books was uniquely locked up for safe keeping.

The ritual has been performed uninterrupted for nearly 700 years.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

A little slice of Japan and its aesthetics in London's Holland Park.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

The palatial McDonald's that inspired Wesley Willis.

Orthodox church partially financed by Tsar Nicolas II.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

Assemble a masterpiece at the first and only North American school exclusively dedicated to mosaic art.

The 30,000-volume library is one of the world's most impressive poetry collections.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

These pretty kitties killed and ate as many as 135 railway workers.

First planned industrial community in the United States.

Combination beer garden and music venue in the heart of Wicker Park.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.