Dutch architect UN Studio has posted a slideshow documenting its Tea House on Bunker - a pavilion constructed over two 1936 military bunkers at Vreeswijk in the Netherlands.
Part of a new business and sporting complex, the pavilion is surrounded by polo fields and stables on land that was once part of the New Dutch Water line of defence - a 85km-long system of bunkers, dykes and water management systems built in the nineteenth century to rapidly flood land in the event of an invasion.
Photographs from the slideshow shown here are by Christian Richters and Menno Kok.
UN Studio has also posted a photo of its Theatre Agora at Lelystad, Netherlands, which is due to open next month (below).