Here you will see cars and balls rolling uphill, people standing at impossible angles - all in contradiction to the laws of gravity and physics.

You may visit dozens of mystery spots around the U.S., and many more gravity hills - places where gravity itself seems to be warped. Human perceptions of up, down, straight and crooked are confused by what some say are powerful gravitational anomalies and dizzying magnetic whirlpools, though sometimes our senses may be fooled by clever man-made and natural optical illusions.

Here you may check out some of the more well-known locations.