Today we celebrate St. Patrick, the patron saint of Ireland. For the occasion, Irish landmarks like the surroundings of Dublin's Samuel Beckett Bridge—seen in today's image—are often illuminated in green in a nod to the natural beauty of the Irish countryside. The bridge, which spans over 400 feet across the River Liffey, was named after the Dublin-born writer Samuel Beckett. It was designed to evoke the image of Ireland's national symbol, the harp.