Spitbank Fort: mid-Victorian fortress island turned into a hotel

Spitbank Fort is an offshore island fortress built in the mid-Victorian to help protect Portsmouth. It's been renovated by some savvy hoteliers who've turned it into a luxury hotel and conference centre, and it's all rather gorgeous. You can book the whole thing for retreats, weddings, etc, or just book an individual room.

History of Spitbank Fort

(via Kadrey)