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

Hear the tales of New York's most notorious criminals.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

An institution dedicated to the towering buildings that make up skylines in New York City and around the world.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

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

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

A prohibition era watering hole for the police.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

A posh members-only club with a literally dramatic history.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A symbol of Texas pride.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.