The Conservatory of Flowers opens its doors for free on the first Tuesday of each month, giving you full access to the gorgeous Victorian greenhouse and all its botanical treasures. It’s a killer deal if you’re into plants, photography, or just want a peaceful morning wandering through exotic gardens. The Conservatory sits in the heart of Golden Gate Park and features rotating exhibits alongside permanent collections of orchids, carnivorous plants, aquatic plants, and more. Whether you’re a serious plant nerd or just looking for something beautiful and free to do on a Tuesday morning, this one’s worth planning around.