A guy I work with, his family owned a tract of land about 10 acres. It was very hilly and rocky, so you really couldn't build on it or plant on it but they had always had it and used it for family picnics, reunions, etc.
Then they built I35, and it happened to front right on their land. Every year their taxes got raised - after all it's highway frontage. It got to the point where the government said it was worth over $2 Million. they could no longer pay the taxes, and no one in their right mind would actually buy it because it was so heavily taxed. So, they had to turn it over to the government. It still sits there today, 15 years later, nothing has been done with it but the only difference is the just don't own it any more and can't go on it.
