| On Top of the World Designated Place to Opole | 5,103.26 mi (8,212.91 km) |
| On Top of the World Designated Place to Orzesze | 5,151.46 mi (8,290.48 km) |
| On Top of the World Designated Place to Osowa | 5,008.97 mi (8,061.17 km) |
| On Top of the World Designated Place to Ostroda | 5,085.67 mi (8,184.60 km) |
| On Top of the World Designated Place to Ostroleka | 5,164.40 mi (8,311.30 km) |
| On Top of the World Designated Place to Ostrow Mazowiecka | 5,185.41 mi (8,345.11 km) |
| On Top of the World Designated Place to Ostrow Wielkopolski | 5,068.63 mi (8,157.18 km) |
| On Top of the World Designated Place to Ostrowiec Swietokrzyski | 5,228.82 mi (8,414.97 km) |
| On Top of the World Designated Place to Ostrzeszow | 5,080.24 mi (8,175.86 km) |
| On Top of the World Designated Place to Oswiecim | 5,173.58 mi (8,326.07 km) |
| On Top of the World Designated Place to Otwock | 5,184.60 mi (8,343.81 km) |
| On Top of the World Designated Place to Ozarow Mazowiecki | 5,163.91 mi (8,310.51 km) |
| On Top of the World Designated Place to Ozimek | 5,114.02 mi (8,230.23 km) |
| On Top of the World Designated Place to Ozorkow | 5,114.84 mi (8,231.55 km) |
| On Top of the World Designated Place to Pabianice | 5,128.63 mi (8,253.74 km) |
