The Japanese Katsura is another one of my little sneaky favorites. This is a specie of tree which I have known about and had the pleasure of seeing and working on several times in my career. Small Planting Locations can be a bit of an issue at times and often home owners and landscape professionals wind up putting too much tree into small spaces which many times become a maintenance issue and may even require removing.
These little beauties are slow growing , interesting and somewhat rare. Here is a link that goes into greater detail about this special plant.