It's even stranger than that.
There are a fair few trees here. But most of them aren't natural, they were planted. Planted in perfectly straight, compass-axis lines that run for about a kilometer each, slicing the plain into a giant square checker pattern.
The scenes of Clooney as the President in Spy Kids 3 were allegedly shot by Clooney in a day in his own living room with a camcorder he just had lying around.