Folly for a Flyover

I cycled up to the Lee Valley on Saturday and passed this curiosity. Its on the canal under a flyover on the A12 and the building is made from wooden bricks. they have a stepped theatre/cinema as well as some interesting boat trips. This from their website:

Folly for a Flyover will host a six week programme of cinema, performance and play, including boat tours, screenings and drop-in workshops, produced by Assemble CIC in conjunction with CREATE 2011 and The Barbican Art Gallery.

Photo: Sam Hextall (from phone)