The Guinness Tower
Worth a stop·Co. Mayo, Ireland
What it is
Folly tower built in 1864 on the Ashford Castle estate near Cong during the Guinness family’s ownership of the grounds.
Also on the block, if you have time
Monk’s Fishing House (200 m, free), Cong Abbey (300 m, free), The Quiet Man Museum (300 m, free).