Nowadays, in some of the most visited cities in the world, and also in other places with a great touristic attractive, some hotels have been built which due to their original design and their especial characteristics had become one more of the monuments of the city and spots of touristic interest. They are hotels that are photographed and visited daily, many reaching the point where they are seen as a badge of the city. We present a selection of singular and unique hotels, both by their architecture and their interior design.