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Barbarastollen Underground Archive

Germany’s “treasure chamber” is located in a disused mine near Freiburg. Documents from over a thousand years of history are stored in the underground archive.

The Petra Treasury

Al-Khazneh is one of the most elaborate temples in the ancient Arab Nabatean Kingdom city of Petra. As with most of the other buildings in this ancient town, including the...

The Unfinished Obelisk

The unfinished obelisk is the largest known ancient obelisk and is located in the northern region of the stone quarries of ancient Egypt.

Suakin Island

The island town of Suakin, in north-eastern Sudan, was an important port for trade and culture on the East African coast for centuries.

The Al-Rajajil Standing Stones

Al-Rajajil, sometimes referred to as the Standing Men, or Standing Stones, are a collection of some fifty groups of man-made stone columns near the ancient oasis town of Sakakah in Al-Jawf province in northwestern Saudi Arabia.

Mrauk U

Spread across the beautiful rolling hills of Rakhine in Western Burma, lies a little known archeological site—the medieval town of Mrauk U.

Domino Sugar Refinery

The Domino Sugar Refinery is a former refinery in the neighborhood of Williamsburg in Brooklyn, New York City. It was the original refinery of the American Sugar Refining Company, which produced Domino brand sugar.

Stone Forest

The Stone Forest or Shilin is a notable set of limestone formations about 500 km2 located in Shilin Yi Autonomous County, Yunnan Province, People's Republic of China, near Shilin approximately 90 km (56 mi) from the provincial capital Kunming.