The Park of Roses, part of the larger and considerably less flowery Whetstone Park, was one of the first Columbus sightseeing destinations that was recommended to me when I first moved here almost two years ago. It's known as a popular spot for dates, photo shoots, and other stuff I try very hard to avoid while I'm there. Established in 1953, the park has over 12,000 roses of more than 400 different varieties, which is like, out of control when you really think about it. (I didn't even know there were that many types of roses???) It's won all sorts of awards for flower-related stuff, but for me it's mostly just a calming place that gives me a lot of opportunities to stick my nose or camera lens into some flowers.
I have a thing about botanical gardens, arboretums, and conservatories. I try to visit one in every city I travel to--although that's often unrealistic given that I only ever take short trips and the purpose is usually to visit friends or attend a conference. Also, winter. And also, because of what botanical gardens literally are, they tend to be located wayyyy outside of the city center (hi, New York) and inaccessible by public transit (looking at you, Chicago).