Fortified religious buildings

World Heritage Sites connected to 'Fortified religious buildings':

Ancient Building Complex in the Wudang Mountains the upper complex is protected by high wall similar to the Beijing's Forbidden City

Avila "At Ávila the cathedral was incorporated into the city wall" (wiki)

Baroque Churches Nuestra Senora de la Asuncion in Santa Maria; link

Convent of Christ in Tomar

Cracow St. Andrew's Church, "a rare surviving example of the European fortress church used for defensive purposes" (wiki)

Durham Castle and Cathedral Cathedral: "Durham Cathedral was also partly fortified and known as 'half fortress against the Scot'."

Mount Athos "The entire guarding and defending system was pointed towards the enemy coming from the sea. He came up against the fortification of the shore (fortified harbors and towers), then against the fortifications of the monasteries that could held out until the outside help arrived. During the Ottoman domination there was an army body to protect the monasteries." ; link

Novodevichy Convent the whole complex is protected by Fortress-like wall

Popocatepetl monasteries "These monasteries were built very solid with thick walls and very austere. In some of the complexes, one can see stone merlons which make the complexes look like castles or forts. These were for defensive purposes as the monks were invading Mesoamerican lands to impose a new religion. For this reason, churches and monasteries of this type are called "fortress temples." (wiki)

Potala Palace

Routes of Santiago de Compostela in France St. Avit Sénieur in the Dordogne

Saint Catherine Area Monastery

Santa Cruz de Mompox "The churches also served as forts in the earlier years of the city."

Southern Öland Hulterstad, Remso

Trinity Sergius Lavra Sergiev Posad - the whole complex is protected by Fortress (posad in russian means fortress)

Villages with Fortified Churches

Wachau Cultural Landscape Weissenkirchen Church; link