Case file · Anomaly hotspot
Oregon Vortex
A roadside attraction at Gold Hill, Oregon, opened to the public in 1930, where people seem to change height and balls appear to roll uphill inside a tilted shack. Promoters called it a magnetic or gravitational vortex.
1930 CE · 42.49, -123.08 · status: explained
The sceptical view
The effects are optical illusions caused by the tilted building and sloping ground with no level horizon.