The first two times I visited Rome on vacation, there was scaffolding covering this beautiful church.
A lot of people over look the church focusing on taking pictures of the incredible views. It's definitely worth a visit.
Construction was started by the French in 1495 to celebrate their successful invasion of Naples.
During the Napoleonic occupation of Rome, this church like many churches/villas had it's artwork stolen and taken to France. It was eventually returned.
There are several works by Daniele da Volterra. He was a pupil of Michelangelo. Da Volterra was later hired to paint clothes onto the nudes in the Sistine Chapel's The Last Judgement.