This cheery spring bird with a taste for worms is a welcome backyard guest. But will a robin nest in a birdhouse?

A new Taschen book spotlights 62 architect-designed tree houses—from floating globes and steel cubes to net terraces and modular cells.

In this video, I take on the challenge of building a cozy treehouse cabin deep in the forest, designed specially for comfortable winter living. Step by step, I construct a strong wooden platform high ...