Twenty-five years ago, Allegheny County created the The Allegheny Regional Asset District (RAD) to help support and finance the region's libraries, parks, and other municipal points of pride. To celebrate the anniversary, the organization is expanding its annual RADical Days holiday to a full 25 days of free admission to cultural gems around the city. (Note: there are different highlighted events each day, not free admission for all 25 days.) Additionally, libraries throughout the county will offer special programming, and McKeesport will waive all fees to use its pavilions and shelters. Kicking off free-admission season of RADical Days this year are the Pittsburgh Ballet Theatre and the Holocaust Center of Pittsburgh.