Every year the Chicago Architecture Foundation — which turned 50 this year — has organized Open House Chicago, a weekend in October when the owners of over 200 buildings, houses, and museums, open their doors to the public for free. The festival started in 2011 with 131 sites.
Here are some of the highlights from October 15–16, 2016.






Find 100s more photos on Flickr with the tag #OHC2016. Leave a comment with a link to your photos and we may add them to this post.