Catechism of the Catholic Church §2691 — excerpt
The church, the house of God, is the proper place for the liturgical prayer of the parish community. It is also the privileged place for adoration of the real presence of Christ in the Blessed Sacrament.
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.
Also cites: PC 7