The lobby's marble walls were polished by Conrad Schmitt Studios, the same company that did major restoration work at the Rialto in 1980. Cream-colored marble walls line the lobby and cherubim flutter into the auditorium. A Duchess chandelier dominates the rotunda. Inside Rialto Square Theatre, which opened in 1926 and underwent a restoration in the 1980s, shining scagliola columns rise into a celestial dome full of intricate sculptures. Designed in the Neo-Baroque style, it is considered one of '150 great places in Illinois' by the American Institute of Architects. It is also available for public and private functions.
Opening in 1926, it was originally designed and operated as a vaudeville movie palace, but it now houses mainly musicals, plays, concerts, and standup comedy. The Rialto Square Theatre is a theater in Joliet, Illinois ( U.S.).