Piazza di Spagna :It is a sqaure at the bottom of the Spanish steps .
The Spanish Steps is only two stops away from the Repubblica - Teatro Opera metro station. You have to get down at, you guessed right, Spagna metro station! Unfortunately, the church had closed by the time I got there (6.30pm) so make sure that you go earlier if you want to visit the church too! This is another crowded tourist spot, so be prepared to jostle for space with many tourists!After this, I returned back to the hotel. However, if you still have the energy, go for the "Colosseum by Night" tour that I talked about! I have read many reviews that raved about this trip! You will thank me later :-)