Open House New York
Time Out says
It's time again for Open House New York, the annual festival where more than 250 fascinating sites across New York open their doors to the public. The event has been extended to three days this year and boasts a dizzying array of venues, from historic farmhouses to breweries to dance studios. Many of the locations don't require advance reservations, but some do, so be sure to visit ohny.org beforehand.