Competition: Dezeen and publisher Taschen have teamed up to give away three copies of a book containing 50 remarkable treehouses.
Congratulations to the winners! Katalin Enyedi from Hungary, Stefka Zambarova from Bulgaria and Adam Richards from Norway all won a copy of Tree Houses.
Above: image of a treehouse in the southwest of Irian Jaya, Indonesia by Harald Melcher/Rubinland
Author Philip Jodidio compiled a selection of unusual structures built in, around or on top of trees around the world for Tree Houses: Fairy Tale Castles in the Air.
Above: image of Free Spirit Spheres, Qualicum Bay, British Columbia, Canada by Tom Chudleigh
Several photos of each project are accompanied by information about the design and a short biography of the architect in English, French and German.
Above: image of Terunobu Fujimori's Teahouse Tetsu, Kiyoharu Shirakaba Museum, Nakamaru, Hokuto City, Yamanashi, Japan by Akihisa Masuda
This competition is now closed. Three winners will be selected at random and notified by email. Winners’ names will be published in a future edition of our Dezeenmail newsletter and at the top of this page. Dezeen competitions are international and entries are accepted from readers in any country.