A curious friendship between two inanimate ladies.

The most confusing clock in New York.

"A hideous albatross in the Hudson River Valley."

The notorious headquarters of a corrupt political machine.

100 massive sculptures in the Hudson River Valley.

“Invented in Key West, Perfected in Brooklyn."

The oldest living tree in Manhattan comes shrouded in sinister legend.

This innocent-looking townhome is actually a subway exit.

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

Cryptic messages embedded in the New York City sidewalk.

Lie in a hammock where George Washington stood.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

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

New York City's smallest piece of private property.

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

A semi-scholarly approach to sex.

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A terrific purveyor of natural history objects and curios.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.