kimmartin's User Profile - Atlas Obscura
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Bedford, Indiana

Bluespring Caverns

The longest navigable underground river in the United States is home to countless blind and albino animals.
Santa Rosa, New Mexico

Santa Rosa Blue Hole

A clear blue swimming hole with hidden caves, still unexplored.
Fresno, California

Forestiere Underground Gardens

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.
Camdenton, Missouri

Ha Ha Tonka Castle Ruins

European castle ruins in an American state park are actually the product of death and grief.
Weeki Wachee, Florida

Weeki Wachee: City of Live Mermaids

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.
Williston, Florida

Devil's Den

The scuba diving training facility was named for the steam that rises from the cave's chimney.
Neskowin, Oregon

Neskowin Ghost Forest

The eerie remnants of an ancient forest were hidden under the sand for centuries.
Logan, Ohio

The Caves of Hocking Hills State Park

Rare recess caves fill this unbelievably beautiful Ohio park.
Philadelphia, Pennsylvania

Tiffany Glass Mural "The Dream Garden"

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.
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.
Los Angeles, California

Venice of America Canals

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.
Saltville, Virginia

Great Channels of Virginia

This maze-like slot canyon is a unique gem within an already fascinating geological area.
San Francisco, California

Ruins of the Sutro Baths

The seawater playground of gilded-era San Francisco burned to the ground in 1966.
Richfield, Utah

Pando, the Trembling Giant

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

Ruby Falls

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.
Ogdensburg, New Jersey

Fluorescent Rocks of Sterling Hill Mine

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.
Inyo County, California

Sailing Stones of Racetrack Playa

The rocks in this arid basin leave trails of movement behind them.
Tillamook, Oregon

Octopus Tree of Oregon

No one knows how this Pacific Northwest spruce tree came to have so many trunks.
Issaquah, Washington

Treehouse Point

A whimsical village of unique treehouses resides in a Washington forest.
Haines Falls, New York

Kaaterskill Falls and the Bayard of Dogs

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.
Fackler, Alabama

Neversink Pit

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.
Rye, Colorado

Bishop Castle

The largest self-built castle in the U.S., six decades in the making.
Sevierville, Tennessee

Forbidden Caverns

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.
Mammoth Lakes, California

Devils Postpile National Monument

Towering basalt columns, a creation of fire and ice.