Union Church was organized as a non-denominational Protestant church in 1915, with John D. Rockefeller among the founders. Over the years, the Rockefeller family commissioned stained-glasses windows by European masters Henri Matisse and Marc Chagall to adorn the unassuming country church.

The site will be open for guided tours Saturday-Sunday, December 7-December 22. Tickets are $10. Tours are free for Historic Hudson Valley Members. Admission is by timed ticket only.