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18 of the world's most stunning treehouses

By: Laura Moss on March 18, 2011, 1:25 p.m.
Firesphere House follows Roderick Romero's signature styles.

Photo: Roderick Romero

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Firesphere House

Roderick Romero’s Firesphere House was built on three eucalyptus trees in the backyard of a Brentwood, California, couple. The entire house was built in Romero's signature sustainable style using reclaimed wood, salvaged windows and vintage stained glass from Buenos Aires. The house features a large porch and viewing deck that was made from tree branches found in the yard.