A gallery of underwater art that can be visited by man and fish alike.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A promotional sun clock on the site of San Francisco's great raceway.

This private residence was the template for one of the most beloved television homes of all time.

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

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

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

A popular European tradition makes its way to the states on one of America's most famous bridges.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

Notorious artist squat renovated into legal studios.

A dilapidated dock tells the story of Titanic's missed arrival.

Try not to get slimed in Tribeca.

Rochester's signature culinary delicacy.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Two plaques commemorate the site of Shakespeare's first theatre.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.