RE: [ENG-SPN] The Invisible Church of the Duero Frontier / La Iglesia Invisible de la Frontera del Duero

Indeed. It also helps to better understand the surroundings—how those small rural settlements formed, the significance of those churches, why they were situated precisely along those roads and at those crossroads (seemingly in the middle of nowhere), and a multitude of other details. Although heavily modified, the church dates back to the 12th century. Thank you for your comment, and best regards.