The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The strange, ritualistic-seeming 100+ year old basement of a New Hampshire undergrad society.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

This giant temperature attraction created some giant electric bills.

This former shopping outlet is now adorned with beautiful graffiti and murals.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A giant open-air sculpture made of over 200 full-sized boats.

An enormous illuminated figure dances on the Las Vegas strip.

The drama of nature in full effect in this Nevada State Park.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

An abandoned water sports stadium that has become a haven for graffiti and decay.

Former villa and estate of James Deering developed to preserve native tropical forests.

A perfect circle of 24 mysterious holes dates back to prehistoric times.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

Unique tower has outlasted a takeover of the company.