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The word “treehouse” can conjure up fond childhood memories for many. As a kid, the idea of a house floating above the ground is an endless source of wonder-- and that wonder never truly goes away! Countless designers have experimented with the idea of suspending their architecture among the trees, and a large number of those projects have made their way onto our site. See nine of our favorites, after the break. 

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This time-lapse montage by Ricardo Oliveira Alves Photography explores the passage of light through the Fragrante House, a project in Lisbon, Portugal defined by its skylights and green garden-walls. Excerpts from an interview with architect Luís Rebelo de Andrade are included, illustrating the many features that make this house unique, and how Lisbon's quality of sunlight adds a natural beauty to the interior.

This Financial Times article describes the Post-Recession paradigm shift occurring in Portuguese architecture -- from construction to landscape, large to small. Pritzker Prize winners Alvaro Siza and Eduardo Souto de Moura have been leading this "micro" trend, designing hotels with exceptional materiality and craft. We've decided to round up some of these extraordinary structures, including: Casa Na Areia and Cabanas no Rio by Aires Mateus, Jorge Sousa Santos’ Rio do Prado, the Ecork Hotel by Jose Carlos Cruz and Villa Extramuros by Jordi Fornells. Last but not least, is ArchDaily’s building of the year for hospitality architecture -- the Tree Snake Houses from father Luís Rebelo de Andrade and son Tiago Rebelo de Andrade.