O'Brien's Tower stands at the highest point of the Cliffs of Moher in County Clare, Ireland, built in 1835 by local landlord Cornelius O'Brien as an observation tower for the growing number of tourists drawn to these dramatic cliffs. Rising 188 meters (617 feet) above the Atlantic, this iconic limestone structure originally housed a teahouse and featured an elaborate ironwork round table. On clear days, visitors enjoy panoramic views extending across County Clare to the mountains of Kerry, the Twelve Bens mountain range in Connemara, and the Aran Islands. Entry to O'Brien's Tower is included with admission to the Cliffs of Moher Visitor Centre, with expert guides available to interpret the tower's compelling history.