I’m not really sure what you mean by “projects” and I don’t know where you are in the city but I can suggest some outdoor spaces near the inner harbor if that’s where you’re at. For one, I second visiting the outside space next to the aquarium. You should also check out:
-the space between the WTC building and the aquarium. It has an old, huge propeller, a big metal fixture and a neat planting design (esp from above)
-the planting area around the Baltimore Visitor’s Center. They have an interactive water feature close by to it.
-There’s a waterfall sculpture fountain at the Inner Harbor, corner of Light and Pratt.
– Harbor East. You can walk there from the Harbor, it’s so close. At the heart is this huge golden sculpture/fountain surrounded by cobblestone. If you keep walking past it towards the water there’s a nice waterfront area.
– Holocaust Memorial, pretty minimal, outdoor memorial
– Don’t know if you’re far from Mt Vernon but you can take the free Charm Circulator up to Mount Vernon too. Has a more European-flavor to it