Britain's Prince Charles, the heir to the throne, is coming to Washington, D.C., Tuesday, days after many in the United States were glued to the television watching the wedding of his elder son, William.He is expected to meet with President Barack Obama during the three-day visit, according to a statement from his office. He is also expected to make several stops related to agriculture.Prince Charles is scheduled to deliver the keynote address at a conference on sustainable agriculture at Georgetown University, along with visiting a city farm that grows food for low-income residents in D.C.The Prince of Wales is also expected to visit the Supreme Court and attend an event honoring British and American soldiers.Tuesday will be the first time he has visited the United States since 2007 when he was joined by his wife, Camilla, Duchess of Cornwall.On that trip, he attended events in Philadelphia and New York.Source: CNN