The City and Borough of Juneau is a unified municipality located on the Gastineau Channel in the panhandle of the U.S. state of Alaska. It has been the capital of Alaska since 1906, when the government of the then-District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900. Juneau is home to Perseverance Theatre, Alaska's only professional theater. The city hosts the annual Alaska Folk Festival and Juneau Jazz & Classics music festivals, and the biennial Celebration. The Juneau Symphony performs regularly. Downtown Juneau boasts dozens of art galleries, which participate in the monthly First Friday Gallery Walk and the enormously popular December Gallery Walk held in the first week of December. The Juneau Arts & Humanities Council coordinates events while fund-raising, distributing some grant money, and operating a gallery at its office in the Juneau Arts & Culture Center, 350 Whittier Street. On summer Friday evenings open-air music and dance performances are held at Marine Park.