The fences outside some of South London's estates are made from recycled World War II stretchers.

King of the Saxons on top, Roman goddess of wisdom on the bottom.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

Step aboard the first ship to circumnavigate North America.

An artistic tribute to the famous singer, just around the corner from where he was born.

A touching tribute to the "Queen of Soul."

Try not to get slimed in Tribeca.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The home of the first American-born saint is one of the only curved buildings in New York.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

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

A cargo of beautiful music.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

There are owls with glowing eyes in Herald Square.