Feb. 18, 2011 at 3:03 PM ET
NBC's Michelle Kosinski travels to Ireland to speak to Brendan Holland, an Irishman in his late 50s who recently discovered he is related to the famed "Irish Giant." (We wrote about Holland's family tree discovery last month.) The "Giant's" real name was Charles Byrne, and his 7-foot-7-inch skeleton is on display at The Royal College of Surgeons in London. Recent research involving the two men is leading doctors in Ireland to wonder if gigantism may be an inherited condition.