This $3.5 million French château may have an ... the red-brick castle is surrounded by 2.5 acres of land—and a moat. The ground floor features a sleek living area with a white-walled dining ...

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.

Cruising along the moat that surrounds Matsue Castle, a national treasure, passengers pass under no less than 16 bridges.