The Lincoln Park Conservatory is located at 2391 N Stockton Dr. It’s in-between the Nature Museum and the Lincoln Park Zoo. It’s a great place to go in winter to get away from the cold.
The Conservatory is home to a Palm House, a Fern Room (look for the dinosaurs scattered around), an orchid house, and a show room.
They have koi and goldfish. They also have plenty of places to sit and just soak up the warmth and the greenery.
When I went the show room seemed to be decorated for valentines day with a heart made of flowers in one of the ponds and classical music playing. It’s free to visit and is definably fun to check out.