Between the two synagogue buildings is the Jewish Museum of Maryland. Other attractions National Aquarium in Baltimore Harborplace and the Gallery (which includes a Ripley's Believe It or Not! museum) Maryland Science Center The Pratt Street Power Plant (containing Barnes & Noble, Hard Rock Cafe, and the original ESPN Zone, which closed in June 2010; in the late 1980s, contained an indoor Victorian era "fun house"-themed Six Flags amusement park) Top of the World at the Baltimore World Trade Center Holocaust Memorial Columbus Center, home of the University of Maryland Biotechnology Institute Lockwood Place Baltimore Visitor Center Lloyd Street Synagogue, the third-oldest synagogue in the United States, now a museum McKeldin Square Free speech As a central and busy part of Baltimore, the Inner Harbor has been the site of much political and artistic activity. The city is involved in ongoing disputes over free speech in the area. One early conflict concerned marchers for gay rights, whose permit was revoked by the city. (The city announced that only five or fewer people could march, and that they could not carry signs.) The Rouse Company, which began operating Harborplace in 1980, has long been in conflict with street performers. The company regulates performances, and has often been accused of suppressing free speech. These disputes came to a head in 2002–2003, when two events triggered a lawsuit against the city. ACLU lawsuit On October 21, 2002, street performer Jerry Rowan was banned from the area for making an "insensitive" joke. Discussing the then-current D.C. sniper case, Rowan said: "I was driving downtown this morning, and on the radio I heard that they've finally come out with a composite of the sniper, so there should be an arrest forthcoming. Apparently, he's a white guy that speaks Spanish and looks like he's Arab." Police officers overheard the joke and reported it to Rouse. The company had previously sent a letter to Rowan admonishing him for "off-color humor", as well as "lack of respect for program administrators". After this report, the company banned him from the area. On April 4, 2003, a police officer asked Baltimore's Women in Black to disband. The group had (and has) gathered in McKeldin Square every Friday since September 11, 2002. Rowan and the Women in Black filed suit against the city of Baltimore on October 7, 2003, arguing their right of free speech. They were assisted by attorney Rajeev