insurance company UnityPoint Health: Owns three hospitals in the area, two in Peoria Top employers According to Peoria's 2018 Comprehensive Annual Financial Report, the top employers in the city are: Arts and culture Museums in Peoria include the Pettengill-Morron House, the John C Flanagan House of the Peoria Historical Society, and the Wheels o' Time Museum. The Museum Block, opened on October 12, 2012, houses the Peoria Riverfront Museum, a planetarium, and the Caterpillar World Visitors Center. The Peoria Art Guild hosts the Annual Art Fair, which is continually rated as one of the 100 top art fairs in the nation. Three cultural institutions are located in Glen Oak Park. The Peoria Zoo, formerly Glen Oak Zoo, was expanded and refurbished in recent years. Finished in 2009, the new zoo improvements more than triple the size of the zoo and feature a major African safari exhibit. The Steamboat Classic, held every summer, is the world's largest four-mile (6 km) running race and draws international runners. The Peoria Santa Claus Parade, which started in 1888, is the oldest running holiday parade in the United States. Library Library services in Peoria originated in 1855 with two rival libraries, the Peoria Mercantile Library and the Peoria Library, which consolidated in 1856 as the Peoria City Library, and contained over 1,500 volumes. The Peoria Public Library has five locations, including the Lincoln Branch, a Carnegie library opened in 1911. Performing arts The Peoria Symphony Orchestra is the 14th oldest in the nation. Peoria is also home to the Peoria Municipal Band, the Peoria Area Civic Chorale, the Youth Music Illinois (formerly known as Central Illinois Youth Symphony), Central Illinois Ballet, and the Peoria Ballet. Several community and professional theaters have their home in and around Peoria, including the Peoria Players, which is the fourth-oldest community theater in the nation and the oldest in Illinois. Corn Stock Theatre is another community theater company in Peoria, and is the only outdoor theater company in Central Illinois. The fair features livestock competitions, rides, concessions, motor contests and concerts. Civic Center The Peoria Civic Center includes an arena, convention center, and theater, and was completed in the early 1980s, was designed by the famed late architect Philip Johnson. It completed a $55 million renovation and expansion by 2007. The Hotel Pere Marquette finished renovations in 2013 with a skyway linking to the Peoria Civic Center. A new 10-story