ATHENS, GREECE—ABC News reports that traces of a round building estimated to be 4,000 years old were discovered on a hilltop on the island of Crete during an investigation conducted ahead of the construction of a radar station to serve a new airport. No other Minoan structures like it have been found, according to archaeologist and Culture Minister Lina Mendoni. The entire structure covers about 19,000 square feet, and consists of eight stepped stone walls measuring up to more than five feet tall surrounding an inner circle split into smaller, interconnecting spaces. Researchers think that these rooms would have been covered by a conical roof, similar to early Minoan beehive tombs. Many animal bones were recovered inside, suggesting that the building may have been used for communal ceremonies and offerings involving the consumption of food and wine. Mendoni said that a new location for the radar station will be found.