On the Silk Road, these lost twin cities may have sustained themselves in a foreboding landscape with metallurgy and commerce ...

Two high-altitude, medieval cities built by mobile herders along Silk Road trade routes in Central Asia ... cities in medieval Asia, the researchers say. The mountain city’s fortress, flanked ...

The Urals stretch about 2,500 kilometers. They include icy tundra in the north and forests in the south. It is one of the world’s longest mountain ranges.

The wide streets of Bishkek, the capital of Kyrgyzstan in Central Asia, are lined with tall trees under which community ...

The highest mountain ranges are created by tectonic plates pushing together and forcing the ground up where they meet. This is how the mountains of the Himalayas in Asia were formed. The Andes are ...