| On Top of the World Designated Place to Oak Grove (South Carolina) | 343.25 mi (552.41 km) |
| On Top of the World Designated Place to Oak Harbor (Washington) | 2,506.47 mi (4,033.77 km) |
| On Top of the World Designated Place to Oak Hills (Oregon) | 2,466.24 mi (3,969.03 km) |
| On Top of the World Designated Place to Oak Lawn (Illinois) | 923.38 mi (1,486.04 km) |
| On Top of the World Designated Place to Oak Park (California) | 2,162.65 mi (3,480.45 km) |
| On Top of the World Designated Place to Oak Park (Illinois) | 935.25 mi (1,505.13 km) |
| On Top of the World Designated Place to Oak Park (Michigan) | 924.37 mi (1,487.63 km) |
| On Top of the World Designated Place to Oak Ridge (Florida) | 68.46 mi (110.18 km) |
| On Top of the World Designated Place to Oak Ridge (New Jersey) | 933.40 mi (1,502.17 km) |
| On Top of the World Designated Place to Oak Ridge (Tennessee) | 488.02 mi (785.40 km) |
| On Top of the World Designated Place to Oakdale (California) | 2,284.96 mi (3,677.29 km) |
| On Top of the World Designated Place to Oakdale (Minnesota) | 1,242.75 mi (2,000.02 km) |
| On Top of the World Designated Place to Oakland (California) | 2,359.77 mi (3,797.68 km) |
| On Top of the World Designated Place to Oakland (New Jersey) | 940.20 mi (1,513.11 km) |
| On Top of the World Designated Place to Oakland Park (Florida) | 240.77 mi (387.49 km) |
