A yearslong drought in Spain is prompting officials to issue stark warnings about the eventual need for emergency measures to conserve water while also uncovering long-lost structures built nearly 1,000 years ago. A recent video from AFP showed the ruins of an 11th-century church in the usually submerged Medieval village of Sant Roma de Sau. The church has been mostly underwater since the 1960s when the government of the Catalonia region created the Sau Reservoir on the site of the former town.