My family is heading to Washington, D.C. For Spring Break in April. I booked the Hilton in Dupont Circle and saw that it is $36 dollars a night to park. A little steep for my budget. I was on a website panda parking and they have parking at Marriott for $14 a night which is close to the HIlton.....Any suggestions on where to park in the Dupont Circle so Washington, D.C.?