SONAR : 407 E Saratoga St Baltimore MD 21201 Located in Center City Baltimore -- 3 Blocks from City Hall, between Gay & Holliday Streets. The building is a non descript warehouse in the middle of the block, so look carefully. From I-83: Go south to its end. At the light turn right onto Fayette St. Follow to next right, Gay St, and turn right. From Gay St. take first left onto Saratoga St. Sonar is on your left in the middle of the block. From I-95 (North or South): Exit onto 395. Follow straight to Pratt St and turn right. Follow to Gay St, turn left. Follow Gay St to Saratoga St and turn left. Sonar is on your left in the middle of the block. FREE two hundred car parking lot directly across the street. Plenty of free street parking as well.