Do: Visit the National Zoo The National Zoological Park, established in 1889, is sure to please all ages. Young ones will enjoy the Kids' Farm petting zoo where cows, miniature donkeys, and goats graze near the zoo's vegetable garden, and adults will be happy about the free admission. The zoo is home to over 400 species and is most renowned for its giant pandas, Mei Xiang and Tian Tian, on loan from the Chinese government. Stay: Marriott Wardman Park Hotel Tucked away in a leafy residential neighborhood less than ten minutes from the zoo by foot, D.C.'s biggest hotel is a blur of conventioneers -- huge meetings are its bread and butter. The Marriott Wardman has lovely grounds, a decent fitness center, and pleasant common areas. Rooms have up-to-date electronics and comfortable beds, but they're nothing special for the price -- you may also want to consider the nearby (and generally less expensive) Omni Shoreham.