Located across the street from City Hall, Saint Peter in Chains Cathedral is architecturally one of the more unique Catholic churches in the country. Built in 1845, its Greek Revival design, particularly in the interior, is quite striking compared to other churches built in the 19th and first half of the 20th centuries which were typically designed in the Gothic or Romanesque styles. The exterior features large Corinthian columnns at the entrance and a tall, 224 ft. high spire. Large bronze doors also highlight the entrance. Inside, Corinthian columnns line each side of the church. On the rear wall, behind the altar, is the largest Venetian glass mosaic in the country (35 ft. high and 40 ft. wide). It depicts a young Jesus Christ sitting on a throne. The church also possesses some unique and priceless items. One of these is a processional cross with a gold corpus created by Italian artist Benvenuto Cellini (1500-1571) that was originally located in a private chapel in Florence, Italy. The church was added to the National Register of Historic Places in 1973.
The church underwent a complete marble restoration 1957. In total, 600 tons of new marble, both exterior and interior, replaced the original marble.