Gray's User Profile - Atlas Obscura
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Woodstock, New Hampshire

Ice Castles

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.
Logan, Ohio

The Caves of Hocking Hills State Park

Rare recess caves fill this unbelievably beautiful Ohio park.
Gurdon, Arkansas

The Gurdon Light

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.
Cambridge, Massachusetts

Forbes Pigment Collection

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.
Aspen, Colorado

Magic Mushroom House

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.
Lucas, Kansas

World's Largest Collection of Smallest Versions of Largest Things

A unique attraction and museum dedicated to exploring iconic roadside structures.
South San Francisco, California

Wind Harp

A large instrument played by the wind.
California

Eureka Dunes

The highest dunes in California are the most likely place in the area to hear the Singing Sands.
Somerville, Massachusetts

Museum of Modern Renaissance

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.
Wendover, Utah

Sun Tunnels

A sculpture for the sun and stars, created by Nancy Holt.
Lovell, Wyoming

Bighorn Medicine Wheel

Native Americans built this circle of stones, which was used to predict astronomical events.
Harmony, Minnesota

Niagara Cave

This large midwestern cavern features impressive rock formations and an underground waterfall.
La Pointe, Wisconsin

Apostle Island Sea Caves

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.
Pittsburgh, Pennsylvania

The Weeping Glass

A beautiful oddities shop crammed with strange and morbid curiosities.
Seattle, Washington

Full Tilt Ice Cream and Pinball Arcade

An ice cream parlor chain that caters to vegans and pinball fans equally.
Fredericksburg, Texas

Enchanted Rock

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.
Houston, Texas

Buffalo Bayou Park Cistern

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.
Corinne, Utah

The Spiral Jetty

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.
Los Cerrillos, New Mexico

Origami in the Garden

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.
Bolinas, California

Alamere Falls

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.
Forks, Washington

One Square Inch of Silence

A tiny red pebble marks what may be the quietest outdoor spot in the United States.
Kayenta, Arizona

Mystery Valley

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.
Murfreesboro, Arkansas

Crater of Diamonds State Park

The only diamond mine in the world where you can keep what you find.
Luray, Virginia

The Great Stalacpipe Organ

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.