A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Phil Mortillaro uses keys to bring art back to the Village.

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

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

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

The most confusing clock in New York.

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

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Little Red Lighthouse under the George Washington Bridge.

Salute the leader of the proletariat.

The site of the deadly Triangle Shirtwaist Factory Fire.

The notorious headquarters of a corrupt political machine.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

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

Commemorating the spot where the famous scientist fed his pigeons.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Unrepaired walls from a 1920 anarchist bomb attack.

The former hotel where Tesla invented the radio.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.