While hiking around Balmer Park just east of here, Nik and I stumbled upon an unusual vine weaving itself through the shrubs. The leaves were so pretty and bright green, almost like a Sycamore. But then I saw the itty-bitty spiky fruit hanging here and there, and realized they were wild cucumbers. I had never seen these before because they don't bear fruit until fall and usually I'm not looking for that sort of thing. Plus this little guy was camouflaged among the wild grape vines.
According to Wikipedia, they are not edible, but with those little spikes, not sure I'd even want to try!