The Michelson Morley Experiment Marker Portal in Doans Corners Ohio United States
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 1 |  The Michelson Morley Experiment Marker | HS HS | -- | 4 | 8 | 100% | 154 |
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 1 | The Michelson Morley Experiment Marker | HS HS | -- | 4 | 8 | 100% | 154 |