How about using the subway when you travel downtown Rome?

pu1. Rome as a whole is large, but the area you actually see is quite concentrated in the city. It's enough to walk around

2017-12-14

OK

pu2. There is a subway in downtown Rome, but the gap is not as big as the subway in Korea. Even if it's about one stop, it's about 10 minutes away if you actually walk

2017-12-14

OK