Hostal dos Reis Católicos - Credit: Wikimedia Commons
The Hostal dos Reis Católicos (in Galician), also called the Hostal de Los Reyes Católicos (in Spanish) or Parador de Santiago de Compostela, is a five-star Parador hotel, located in the Praza do Obradoiro of Santiago de Compostela, Spain. It is widely considered one of the oldest continuously operating hotels in the world, and has also been called the "most beautiful hotel in Europe".Morris, Jan; Spain, p. 60 Read more on Wikipedia
Source: en.wikipedia.org