A median strip along busy Speer Boulevard in downtown Denver is an unlikely place to find an enigmatic tower of latticed wood.

For their own house and office in Chile, the husband-and-wife team of Mauricio Pezo and Sofia von Ellrichshausen challenged themselves to create variety out of repetition.

Casa Poli is only a 30-mile drive from Chile’s second-largest city, Concepción, midway down the country’s coast, but it feels perched at the edge of the world: a place with limitless ocean views, a soundtrack provided by wind and pelicans, and no other human beings within eyeshot, except for local fishermen in boats, hundreds of feet offshore.