A remarkable discovery has been made by archaeologists beneath the Baltic Sea - a 3,000-foot-long stone wall that could ...

Archaeologists have uncovered an incredible 3,000-foot-long ancient stone wall submerged in the Baltic ... The researchers said: “The presence of such a large, deliberate structure challenges ...

The old stone wall was about 3 feet tall and 50 feet long ... The fragments were “indicative of (the) large and clearly ...

researchers at ETH Zurich have let an autonomous excavator loose on a big pile of boulders and reclaimed concrete. The goal? To build a 20 foot (6 meter) and 213 ft (65 m) long dry-stone wall as ...

In addition, the stone wall apparently had a distinctive appearance. It is believed that the blue-black shale stones were mainly used to fill the gaps between granites and other large whitish ...