However, until definitive answers emerge, gravity hills will remain among the intriguing scientific mysteries that defy conventional explanation. They serve as a reminder that there is still much to discover and understand about the workings of our world. Gravity Hill Location Country Description Magnetic Hill Canada A gravity hill located near Moncton, New Brunswick. It is known for the optical illusion that makes vehicles appear to roll uphill. Gravity Hill Pennsylvania, USA A popular attraction near New Hope, Pennsylvania, where cars seemingly defy gravity and roll uphill. Electric Brae Scotland A location in Ayrshire, Scotland, where the downhill slope appears to be uphill due to an optical illusion, creating the illusion of objects defying gravity.