This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

New York's southernmost subway station is whimsically wavy.

Sofia's legislative center is continuously reinventing itself.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

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

Red frames showcase remnants of one of New York's original subway stations.

Historical figures from New York City's Catholic community reside in Midtown.

A decommissioned military complex that's now a modern industrial park.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

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

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

There must be a pun in this haystack somewhere...

Commemorating the spot where the famous scientist fed his pigeons.

An artist's cute bronze subway sculptures belie his violent artistic past.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.