It's Evacuation Day, which means that once again we're celebrating Fort Hill's role in helping to boot the British out of Boston. Universal Hub was the first to publish this great pic from the BPL Flickr page showing the fortifications at Dorchester Heights. This is where the cannons that Henry Knox, after designing the fort that gives Fort Hill its name, ended up after he lugged them all the way down from Fort Ticonderoga (including bringing them right through Eliot Square). Oh, and happy St. Patrick's Day, too.