Gray's User Profile - Atlas Obscura
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Yellowstone National Park, Wyoming

Grand Prismatic Spring

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.
San Francisco, California

Exploratorium

San Francisco's newly reopened hands-on science museum.
McKenzie Bridge, Oregon

Proxy Falls

This frequently-photographed waterfall takes only a short hike to visit.
Key Biscayne, Florida

Neptune Memorial Reef

An underwater city for the dead.
Richfield, Utah

Pando, the Trembling Giant

One of the world's oldest and most massive living organisms is a grove of quaking aspens.
Cincinnati, Ohio

American Sign Museum

Where beautiful signs live on forever.
Cougar, Washington

The Ape Cave

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.
Lancaster, California

Antelope Valley Poppy Reserve

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.
New York, New York

Roosevelt Island Tramway

One of only two commuter aerial tramways in the United States.
San Diego, California

Sunny Jim Cave Store

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.
Austin, Texas

Cathedral of Junk

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.
San Francisco, California

Mescaline Grove

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.
Crater Lake, Oregon

Crater Lake

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.
San Francisco, California

'Wood Line'

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.
San Francisco, California

Audium Theatre of Sound-Sculptured Space

The only theatre in the world constructed specifically for sound movement.
Las Vegas, Nevada

'Akhob'

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.
San Francisco, California

Labyrinth at Land’s End

A winding path built in secret on the edge of the continent.
Dripping Springs, Texas

Hamilton Pool

An emerald-green grotto just a short trip from Austin.
San Francisco, California

Esmeralda Slide Park

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.
Laguna Beach, California

Victoria Beach's Pirate Tower

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.
New Orleans, Louisiana

The Singing Oak

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.
San Francisco, California

Garden of Fragrance

Olfactory delights in San Francisco's Botanical Gardens.
Rock, West Virginia

Lake Shawnee Amusement Park

This abandoned amusement park was built on a site with a dark history.
Yellowstone National Park, Wyoming

Morning Glory Pool

A beautiful geyser under environmental threat.