The 1 175 room 49 suite marriott marquis washington dc is designed to reflect its surroundings and complement the adjacent walter e washington convention center conveniently located near penn quarter citycenterdc and the verizon center our hotel makes it easy to explore the citys best attractions guests enjoy direct access to the convention center via an underground concourse connection with more than 105 000 square feet of event space offering 54 breakout rooms a grand lobby with a