It is not a country that is known for "seven hills" but the city of Rome in Italy.
The land of seven hills is Rome, Italy. These seven hills are Palatine, Aventine, Capitoline, Quirinal, Viminal, Esquiline, and Caelian.
Rome, Italy
That's Lisbon, capital city of Portugal. Rome is also (and perhaps firstly) described as being built on seven hills.
Rome is the "City on Seven Hills."
Rome is the "City on Seven Hills."
Rome
Lisboa.
Rome
Seven hills.
Rome
The advantages of the seven hills was that the Romans could protect them selves from any attacks from the side of the hills. They were also a great lookout for the Romans