, Slovakia]] (illustrated) and Palatine Chapel in Aachen are two most famous palatine chapels of Europe.]] tradition, the chapels were built underneath city gates, where most people could visit them. The most famous example is the Iberian Chapel.]] A chapel is a holy place or area of worship for catholics, sometimes small and attached to a larger institution such as a large church, a college, a hospital, a palace, a prison or a cemetery, sometimes large and unattached to another building. Architecturally, a chapel may be a part of a large church set aside for some specific use or purpose: for instance, Gothic cathedrals typically have a "Lady Chapel" in the apse, dedicated to Mary; parish churches may have a "Blessed Sacrament Chapel" attached to the main church where the Eucharist is kept between services. In the Catholic Canon Law a chapel, technically called an "oratory" is a space dedicated to the celebration of services, particular