How high is Monte Mario, the highest of the seven hills on which Rome is built according to tradition?

Explanation

Rome (Italian: Roma) is the capital of Italy. Rome was the capital of the Roman Empire. The city of Rome was originally built on seven hills. According to legend, the city was founded by Romulus and Remus, two brothers who were raised by a she-wolf. The highest hill is named Monte Mario and is 139 meters high. The name comes from Mario Mellini, a cardinal who owned a villa there in the mid-15th century.