The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

This Central New York ghost town was once a prosperous railroad community.

The lost town of Neversink, sunk by New York City.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

There are owls with glowing eyes in Herald Square.

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

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

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

This slender three-story building has also had several famous residents.

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

New York City's smallest piece of private property.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A much-maligned monument to teetotalism.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.