Afraid you’ll run out of time to show off our city’s most prominent phallus to your out of town guests? The Washington Monument is making it easier by extending visiting hours for the rest of the summer. Beginning Sunday and lasting through Labor Day, the monument will stay open until 10 p.m. every day. Normally the monument is open from 9 a.m. to 5 p.m. The National Park Service announced today it is able to…