Catechism of the Catholic Church §2696 — excerpt
The most appropriate places for prayer are personal or family oratories, monasteries, places of pilgrimage, and above all the church, which is the proper place for liturgical prayer for the parish community and the privileged place for Eucharistic adoration.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.