Oban Hydro
Argyll and Bute, United Kingdom · built 1881
The Oban Hills Hydropathic Sanatorium was a proposed hydropathic hotel in Oban, Scotland. Construction of the hotel began in 1881 on a hill east of the downtown overlooking the town and the harbour. Had it been completed the hotel would have been a major landmark on the Oban skyline. The hotel was never completed due to financial difficulties and currently lies in ruins.
Hotel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).