WAKAYAMA—A rare event to explore the underwater world of Wakayama Castle’s moat took place here on Oct. 5 as volunteers and city officials lowered the water level, revealing a hidden ecosystem.

Wessex Archaeology said experts had also found part of the Sheffield Castle moat and signs of the interior layout. The discoveries were made during excavations for Sheffield Council's Castlegate ...

An excavation project in northwestern France has uncovered the ruins of a medieval castle with its moat still intact as well as jewelry and other artifacts, officials said. The castle, believed to ...