The Solano Avenue Stroll, also known as the Solano Stroll, is an annual street fair held on the second Sunday of September on the Solano Avenue shopping district of Albany and Berkeley, California. Stretching close to 2 miles long and bringing between 250,000 and 300,000 attendees in a single day, it has been called the oldest and largest street festival in the San Francisco Bay Area[1][2] and the "world's biggest block party".[3] In 2001, the Library of Congress's American Folklife Center in Washington, D.C. designated the festival as a "National Local Legacy".[4]