Even though it might look like it, this isn't a super villain's secret lair. Known as "Professor Zhang" by his neighbors, the multimillionaire built this country villa on top of a 26-floor apartment building in Beijing's Haidian district.

The villa -- which took six years to build -- features trees, gardens and sculptures. The structure has caused damage to the apartment building, including water leakage into the other tenant's rooms. Building residents have complained to management and local officials asking them to regulate the Professor's bizarre villa. Zhang was asked about the complaints and said, "Since I dare to live here, I am not worried about complaints," which does make him sound a little like an actual super villain.