Architectural historian Max Page believes America’s preservation movement has reached a crossroads.

Stephanie Meeks, CEO of the National Trust for Historic Preservation, has mustered an array of data in this book demonstrating the virtues of architectural adaptation.

Today, the National Trust for Historic Preservation released its annual list of the most at-risk architectural and cultural sites in the United States.

“Who wouldn’t want to work on a Bunshaft building?” asks architect Rod Kruse, a principal at BNIM.

Architects spend a great deal of time making sure their buildings stay put. But the whims of nature and real-estate development can uproot the best of plans and make relocating an important structure the only way to save it.

Skidmore, Owings & Merrill’s United States Air Force Academy in Colorado Springs is one of Modernism’s triumphs — perhaps the most successful campus ever created as a single International Style work.

Dutch architecture firm Mecanoo will lead the renovation of the Stephen A. Schwartzman Building at 42nd Street and Fifth Avenue and the Mid-Manhattan Library on 40th Street.

After decades of gaining strength as a movement, the battle lines have been drawn again, with a significant structure in peril.