My husband and I like visiting churches too. We take my mom when she visits, and we make a point of going to any church in whatever town. She's an atheist, but she likes visiting churches as part of local culture, history and art. Often, they would be empty. If that's the case, I would sing Signor Pietà or similar, and then I say out loud FOTCM prayers. For me, that's the full experience. If there are people, I just light up a candle for loved ones.