Why have you never heard of the second most popular tourist site in New York?

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Two thirds of this Montreal neon icon has survived to flash another day.

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

This massive World War II calculator hearkens back to the days when "computer" was a job title.

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

The remains of what was once the world's steepest passenger funicular.

Oldest existing wire suspension bridge in the United States.

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

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

This once luxurious Catskills resort is now a haunting ruin.

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.

The largest known open fault in the United States is basically a giant natural refrigerator.

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

A winding, cliffside stretch of road overlooking the Delaware River.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

The site of the climactic scene from the classic horror film is now a historic landmark.