| On Top of the World Designated Place to Norwich | 4,388.85 mi (7,063.18 km) |
| On Top of the World Designated Place to Nottingham | 4,284.37 mi (6,895.02 km) |
| On Top of the World Designated Place to Nuneaton | 4,277.61 mi (6,884.14 km) |
| On Top of the World Designated Place to Oadby | 4,292.57 mi (6,908.23 km) |
| On Top of the World Designated Place to Oakengates | 4,234.81 mi (6,815.27 km) |
| On Top of the World Designated Place to Oakham | 4,305.55 mi (6,929.11 km) |
| On Top of the World Designated Place to Oldbury | 4,255.32 mi (6,848.28 km) |
| On Top of the World Designated Place to Oldham | 4,236.98 mi (6,818.77 km) |
| On Top of the World Designated Place to Ollerton | 4,286.06 mi (6,897.75 km) |
| On Top of the World Designated Place to Olton | 4,264.93 mi (6,863.74 km) |
| On Top of the World Designated Place to Omagh | 4,018.67 mi (6,467.42 km) |
| On Top of the World Designated Place to Ormesby | 4,260.73 mi (6,856.98 km) |
| On Top of the World Designated Place to Ormskirk | 4,205.66 mi (6,768.35 km) |
| On Top of the World Designated Place to Orpington | 4,360.45 mi (7,017.46 km) |
| On Top of the World Designated Place to Ossett | 4,256.74 mi (6,850.55 km) |
