When architect Bernard Tschumi was renovating a crumbling 1930s-​era zoo on the edge of Paris, his design team faced challenges.

After winning a competition to revitalize Pedras Salgadas Park, a 1920s-era hot springs resort in northern Portugal, architect Tiago Rebelo de Andrade and his father, Luis, decided to create a grown-up take on a typical father-son structure: the tree house.

In Hamburg, a former Nazi bunker has reopened with an unlikely new program as a sustainable-energy facility.

A combination museum and funeral hall, the Teshima Yokoo House is the latest addition to the collection of art venues being developed on islands in Japan’s Seto Inland Sea under the aegis of the Fukutake Foundation.

Marc Fornes’s NonLin/Lin Pavilion appears lacy anddelicate.

After spending more than a decade photographing forgotten remnants of the Holocaust across his native Slovakia, artist Yuri Dojc turned to Daniel Weil, a partner at design consultancy Pentagram, to create a traveling exhibition for the resulting documentary project, Last Folio.

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

A minimalist structure with maximum impact, Foster + Partners' Ombrière at Marseille Vieux Port marries the World Heritage Site's ancient past with the French city's new status as a European Capital of Culture.