Royal Presidio Chapel - Credit: Wikimedia Commons
The Cathedral of San Carlos Borromeo (), also known as the Royal Presidio Chapel, is a Catholic cathedral located in Monterey, California, United States. The cathedral is the oldest continuously operating parish and the oldest stone building in California. It was built in 1791-94 making it the oldest (and smallest) serving cathedral in the United States, along with St. Louis Cathedral in New Orleans, Louisiana. It is the only existing presidio chapel in California and the only existing building in the original Monterey Presidio. Read more on Wikipedia
Source: en.wikipedia.org