St. Charles Borromeo Seminary, Overbrook, trains priests for the Archdiocese of Philadelphia and two dozen other dioceses and religious communities. It's located in Wynnewood, Pennsylvania, just outside the city limits of Philadelphia. The seminary was founded in 1832, and it's been at its present home since 1871.
In 2005, some of the events of the National Catholic Education Association's annual meeting were held there. I attended one of them and took these photos.