Places plt4000 Wants to Go

An emerald-green grotto just a short trip from Austin.

An exquisite tunnel of cascading flowers.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

Most-visited and most-photographed slot canyon in the American Southwest.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The world’s first penitentiary, meant to be humane, drove men insane.

Rippling sand dunes frozen in the Arizona rock.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A huge musical instrument played by the ocean.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

Otherworldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

A towering Art Deco movie palace made to look like a Mayan temple.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

A cemetery housing wild west legends in South Dakota.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

The oldest continuously-operating Chinese restaurant in the United States has been in business since 1911.

The shortest river in America flows for just 201 feet.

A collection of huge, site-specific sculptures sitting in the Montana woods.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.