Andreas Wenning founded Baumraum, a unique and innovative architectural practice specializing in the design of structures in tree canopies and other natural environments. For private clients, Baumraum has built a whole range of tree houses, from small houses for children to tourist accommodation and business premises. His structures can be found all over the world, from Germany, Austria, Hungary, Italy, Switzerland, Belgium, and the Czech Republic to Brazil, Argentina, and the USA.