Come one, come all, to the greatest show on Earth! Well, in Dayton at least. Celebrating their 25th anniversary, the AIDS Resource Center of Ohio is hosting the 2009 edition of Masquerage. Let your freak flag fly high at this circus-themed event, complete with sword swallowers, fortune tellers, high-wire acts and much, much more. Food items fit for the big top will be provided by local vendors. he event will be held at Montgomery County Fairground’s Roundhouse 8 p.m. to 1a.m.