The sprawling attraction boasts a collection of more than 150 historic wagons.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Legend says train robbers stashed their gold within the depths of this unusual cave.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

What is the Thing?

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

Limestone caves with spectacular showcase chambers.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

See massive fossils that are over 200 million years old in northeastern Arizona.

In which a local geological marvel becomes a quaint roadside attraction.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

A self-built castle made by a mysterious man.

This translucent sculpture represents a quintessential component of New York City's skyline.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

A way to take your secrets to someone else's grave.

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

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

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.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

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