Montreal's Notre Dame Basilica is an awe-inspiring Gothic Revival structure with two 228-foot (m) towers rising up out of Old Montreal. Inside, the deep blue ceiling is encrusted with thousands of 24-karat gold stars, above the 7,000 pipe Casavant Frères organ, intricate carvings and elaborate frescoes and Limoges stained glass windows, which depict Montreal's religious history. Céline Dion was married here in 1994. Unless visitors are attending mass, there is an entrance fee of CAD $5.00.