The Grotto Festival of Lights is a massive holiday display that features 150 indoor concerts, living history, and Biblical performances. Not to mention that during the holiday season the Grotto is decorated by over 500,000 bulbs, lit Christmas trees, and a life-sized nativity scene. Family entertainment and Christmas-themed puppet shows run each night continuously. The festival runs from Friday after Thanksgiving to December 30, from 5 p.m. to 9:30 p.m.
The Grotto, also called the National Sanctuary of our Sorrowful Mother, is a Catholic outdoor shrine built in the Madison South district of Portland. It was constructed in 1924 by Friar Ambrose Mayer, who wanted to fulfill an oath he gave to God.