Free 45-minute TOUR of our spectacular art and history. Starts immediately following the 11am Mass. So, you can join us for Mass and then stay for the tour. A unique opportunity to explore art, history and architecture of one of the most breathtaking architectural and artistic wonders in the region. The basilica community has been a part of Olean's history for 166 years and our 103-yr-old building houses some of the most spectacular art in this entire region of the country.