| On Top of the World Designated Place to Nasaud | 5,473.21 mi (8,808.28 km) |
| On Top of the World Designated Place to Navodari | 5,754.71 mi (9,261.32 km) |
| On Top of the World Designated Place to Negresti-Oas | 5,413.06 mi (8,711.48 km) |
| On Top of the World Designated Place to Nehoiu | 5,621.08 mi (9,046.26 km) |
| On Top of the World Designated Place to Ocna Mures | 5,483.39 mi (8,824.66 km) |
| On Top of the World Designated Place to Odobesti | 5,636.17 mi (9,070.54 km) |
| On Top of the World Designated Place to Odorheiu Secuiesc | 5,544.57 mi (8,923.12 km) |
| On Top of the World Designated Place to Oltenita | 5,682.73 mi (9,145.46 km) |
| On Top of the World Designated Place to Onesti | 5,605.53 mi (9,021.23 km) |
| On Top of the World Designated Place to Oradea | 5,380.37 mi (8,658.87 km) |
| On Top of the World Designated Place to Orastie | 5,475.67 mi (8,812.23 km) |
| On Top of the World Designated Place to Oravita | 5,440.93 mi (8,756.33 km) |
| On Top of the World Designated Place to Orsova | 5,481.96 mi (8,822.36 km) |
| On Top of the World Designated Place to Otelu Rosu | 5,452.24 mi (8,774.53 km) |
| On Top of the World Designated Place to Otopeni | 5,641.74 mi (9,079.51 km) |
