NEW YORK — With New Yorkers self-quarantining, Rockefeller Center conjures up the promise of life returning to normal someday and the unshakable glory of the city. It was New York’s Depression-era ...

When someone thinks of Art Deco architecture, they think of looking up. But what if some of the most interesting stories about New York City’s Art Deco structures actually are better told underground?

Walking around New York’s Rockefeller Center, the huge 1930s complex comprising 19 buildings and 17m sq ft of office space on a 9ha site, I felt a disorienting mix of awe and recognition. As an ...