George Peabody Library, 17 E. Mount Vernon Place, 410-659-8197. Marble-floored reception space beneath six tiers of balconies. Accommodates 240 seated, 190 seated with dancing, up to 400 standing. Available Mondays to Fridays after 5 p.m., all day Saturdays and Sundays. Reserve as early as possible. Cost: $1,500 to $2,000 for four-hour event. Approved caterers only.
The Inn at Government House, 1125-29 N. Calvert St., 410-539-0566. Turn-of-the-century Victorian mansion. Contact: Jeanie Clark. Accommodates 50 seated, 125 standing. Cost: $500 to $1,000, depending on size of party. Reserve three months in advance. Available seven days a week until midnight. Outside catering welcome.