medeanswer's User Profile - Atlas Obscura
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Amarillo, Texas

Helium Time Columns Monument

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.
Ehlanzeni, South Africa

Adam's Calendar

Hidden in the hills is a mysterious stone structure, known only to a few.
Petra District, Jordan

Petra

An ancient capital city that dates back 3,000 years old and harbors many surprises.
Dowth, Ireland

Newgrange

The ancient tomb acts as a calendar that keeps perfect time.
New Delhi, India

Iron Pillar of Delhi

An ancient iron pillar in Delhi that seems to be rustproof.
Ushuaia, Argentina

The Time Capsule of Ushuaia

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.
Uozu-shi, Japan

Buried Forest Museum

Roots and stumps that lay inundated for two millennia are on display in Japan's city of three mysteries.
Miami, Florida

Miami Circle

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

Gobekli Tepe

This hunter-gatherer architecture is believed to be the oldest religious complex known.
El Paso, Texas

Hueco Tanks

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.
Chicxulub, Mexico

Chicxulub Crater

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.
Rome, Italy

Cloaca Maxima

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.
Baker, Nevada

The Bristlecone Pines of the Great Basin

The longest living non-clonal organisms on Earth.
Boulder, Colorado

NIST-F1 Cesium Fountain Atomic Clock

The clock that sets them all.
Bolzano, Italy

Ötzi the Iceman

Europe’s oldest natural human mummy.
Lovell, Wyoming

Bighorn Medicine Wheel

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

Mormon Genealogical Archives

Step into the cool deep past and unknown future of who begat who.
Riga, Latvia

The Very Old Oak Tree

A preserved oak tree about 3,500 years old found in Riga, Latvia.
Kashi Diqu, China

Kashgar Livestock Market

Be careful not to get trampled at this lively two thousand-year-old market.
Nye, Nevada

Yucca Mountain Repository

Potential high level nuclear waste storage site for the next 10,000 years and beyond.
Devon Island, Nunavut

Haughton Impact Crater

The closest thing to Mars on Earth.
Vienna, Austria

Clock Museum

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.
Elberton, Georgia

Georgia Guidestones

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.
Hutchinson, Kansas

Strataca, The Kansas Underground Salt Museum

Home to Hollywood history and a very special salt crystal.