Rossaveal Martello Tower is one of the many Martello Towers dotted around the Irish coast. These towers were built during the Napoleonic era by the British in order to defend Ireland from a coastal attack. Each tower had a raised entrance which made it difficult to access. Inside there were usually two floors with stairs leading to the roof. The roof of these towers usually held a rotatable cannon which could be moved 360 degrees in order to fire on any incoming ships.
Rossaveal Martello Tower is a bit of a rarity as it still contains the original British cannon and it’s platform on the roof.