地球上，竟有六个国家领土辽阔得令人咋舌，随便挑出一个，地图上的轮廓都让人屏息凝神。俄罗斯、加拿大、美国、中国、巴西，以及澳大利亚，这六大版图拼凑起来，几乎占据了全球陆地面积的半壁江山。然而，一个经常被忽略的问题却耐人寻味：广袤的土地，真的就能保证底蕴深厚吗？若将天选之地的标准定格——既能滋养人口，又能孕育文明，还能构建一套千秋不朽的经济社会体系——这六个国家中，真正符合标准的，恐怕只有寥寥无几。

Experts believe ancient alien civilizations have been living on mars. See more in this clip from Season 1, Episode 7, "Mystery Hum and Mayans on Mars." ...

Ancient stone walls in Peru display astonishingly complex joins, multi-angled blocks, scoop marks, and intricate surface geometry carved into hard granite. Researchers comparing these structures to ...

An image of Mars taken by NASA has sparked theories that the agency captured ruins of a lost civilization on the Red Planet.

Meagan Medick and Cassie Coppersmith discuss past civilizations and human history after ancient stonework, tools and ...

Researchers believe that the vessel's plates and bowls were made in the ancient city of Rhosus, once praised by Roman ...

The aliens were next door, and somebody killed them. That’s the story plasma physicist John Brandenburg, PhD, tells about ...

Great cities are built by great kings. Many people think this about ancient civilizations. However, in Mexico, there is a ...

Northern Arizona University, working with Peru’s Ministry of Culture, has uncovered four pristine mummies that could upend ...

Discover ancient monuments that have survived thousands of years, from Göbekli Tepe and Stonehenge to Petra and the pyramids ...

Ancient Indian Civilization Is Among the World's Richest Civilizations: Dr. Narendra Parmar - The Impressive Times ...

The bronze seal ring was discovered among the submerged ruins of ancient Alexandria — and officials say its tiny carving is ...