https://www.history.com/this-day-in-history/guggenheim-museum-opens-in-new-york-city?cmpid=email-hist-tdih-2020- [login to see] 0&om_rid=
On October 21, 1959, on New York City’s Fifth Avenue, thousands of people line up outside a bizarrely shaped white concrete building that resembled a giant upside-down cupcake. It was opening day at the new Guggenheim Museum, home to one of the world’s top collections of contemporary art.