St. Gallen Cathedral, also known as St. Gall Cathedral, is a prominent Roman Catholic church located in St. Gallen, Switzerland. It was built in the 18th century and is renowned for its stunning Baroque architecture, featuring twin towers that rise majestically above the city. The cathedral is part of a UNESCO World Heritage Site, recognized for its historical significance and architectural beauty. The interior of the cathedral is equally impressive, adorned with intricate frescoes and ornate decorations. It houses the St. Gallen Abbey Library, one of the oldest and most important libraries in the world, which contains a vast collection of ancient manuscripts and books. The cathedral serves as a central place of worship and a cultural landmark in the region.