WH b644 is a military bunker located near the coordinates 49.20303,7.5274121 in Germany. The designation 'WH' likely refers to Wehrmacht Heer (German Army) construction during World War II, with 'b644' being a specific bunker identifier. This structure represents the extensive fortification efforts undertaken by Nazi Germany during the war period.
The exact location and purpose of this particular bunker remain to be confirmed through further research, though it likely served as part of Germany's defensive network during the conflict.