Also known as: Sendai-jou (仙台城), Gojourou (五城楼)
Lit. 'Fresh Leaves Castle Ruins'

The ruins of a castle located in Sendai City built by Date Masamune in 1601. It was the governmental seat of Sendai-han and designated a historical landmark of Japan.

The castle sat on Aoba Hill and was naturally defended by a 400-foot cliff on one side and the Hirose River on the other. Masamune built the Inner Citadel and the Western Wing on Aoba Hill, and Date Tadamune built the Second Wing and Third (Northern) wings at its base. The ruins of the Third Wing is now the Sendai Museum.

All that remains of the original castle today are old stone walls; the rest were dismantled or destroyed in fire, earthquakes, and bombings.