 It long sported the largest pillar-less hotel ballroom in the city.Numerous large events have been regularly hosted at the Hilton Washington, including the annual dinners of the White House Correspondents Association and the Radio and Television Correspondents Association, as well as the National Prayer Breakfast.During the 1960s and 1970s, the hotel hosted a number of big musical acts for concerts in their large ballroom, including The Doors and Jimi Hendrix.