The folks at Curious World have put together a list of some of the strangest outdoor sculptures they could find, and there are certainly some interesting items in here. For example, here is the “Spoonbridge and Cherry” near Minneapolis, MN:
Another good example is the “Angel of the North”, a $1.4 million sculpture in the United Kingdom:
The full list is quite interesting, and most of the items are in 3D in Google Earth thanks to talented SketchUp modelers around the world. Check out the full list at on their site and scroll to the bottom to find the locations of all of the items on a map.