40 civilian and military aircraft and 50 historical jet engines are displayed to the public. In addition, the Sacramento History Museum, in the heart of Old Sacramento, focuses on the history of Sacramento from the region's pre-Gold Rush history through the present day. In 2021, the Museum of Science and Curiosity (MOSAC) opened in the restored historic power station building of Matsui Waterfront Park. There is a Museum Day held in Sacramento every year when 26 museums in the greater Sacramento area offer free admission. The 2009 Sacramento Museum Day brought out more than 80,000 people, the largest number the event has gathered. Sacramento Museum Day is held every year on the first Saturday of February. Performing arts The Sacramento Ballet, Sacramento Philharmonic Orchestra, and the Sacramento Opera perform at the SAFE Credit Union Performing Arts Center (formerly known as the Community Center Theater). There are several major theater venues in Sacramento. The Sacramento Convention Center Complex governs both the SAFE Credit Union Performing Arts Center and Memorial Auditorium. The H Street Theatre Complex consists of the Wells Fargo Pavilion, built in 2003 atop the old Music Circus tent foundations, the McClatchy Mainstage, and the Pollock Stage, originally built as a television studio and renovated at the same time the Pavilion was built. These smaller venues seat 300 and 90, offering a more intimate presentation than the 2300-seat Pavilion. The Eagle Theatre in Old Sacramento is a reconstruction of the oldest permanent theater in California and hosts several performances year-round. The newest venue in the city, the Sophia Tsakopoulos Center for the Arts, consists of the 365-seat Sutter Theatre for Children and the Mainstage, seating 250. Professional theatre is represented in Sacramento by several companies. Broadway Sacramento and its locally produced summer stock theatre, Broadway at Music Circus, lures many directors, performers, and artists from New York and Los Angeles to work alongside a large local staff at the Wells Fargo Pavilion. During the fall, winter, and spring seasons Broadway Sacramento brings bus and truck tours to the SAFE Credit Union Performing Arts Center. Resident at the H Street Theatre Complex for the remainder of the year (from September to May), the Sacramento Theatre Company prepares to celebrate its 75th season, beginning in the Fall of 2019. In addition to a traditional regional theatre fare of classical plays and musicals, the Sacramento Theatre Company has a large School of the