St. Peter's Cathedral, Wilmington

Saint Peter's Cathedral is a Roman Catholic cathedral in the Quaker Hill Historic District of Wilmington. The cathedral is the mother church of the Roman Catholic Diocese. It has held this distinction since the early 20th century.

The cathedral was designed by architect Pierre Bauduy in 1818. It was built in the Romanesque Revival architectural style. The church was extended and the bell tower added in 1829.

Much of the interior was added during a large remodeling project that was completed in 1905. The baptistry, altars and frescoes were added at that time. The stained glass, created by Franz Xavier Zettler, was added in 1900.

Saint Peter Cathedral school is located behind the cathedral. It was previously attached to the cathedral. But in 1905, when the apostolic pro-nuncio arrived after the church's remodeling project, he noticed that the church was joined to a rectory and a school. Since a cathedral must be free-standing and debt free, he refused to approve the church as a cathedral. Changes were made over the following years and the church was was eventually designated the cathedral of the diocese.

All visitors are invited to attend mass or schedule a tour of the building. Tours must be planned in advance by contacting the cathedral. Mass takes place Monday through Friday at 12:10 PM, Saturday at 4 PM and Sunday at 9:30 AM.