Bay seniors who relish the sensation of being legally, giddily disoriented should organize a visit to the Mystery Spot in Santa Cruz which you probably have not seen in half a century. It’s a little house tilted 20 degrees from the ground on a redwood covered hill. Scientists call in a “gravitational anomaly” where water seems to flow uphill, chairs perch on walls and no matter how far you lean over, you can’t fall down. Your grandkids should go wild. Parking $5. Admission $6.