The correct answer is - Abbeys, cathedrals, and universities.
Abbeys were the places were usually monks were living. The cathedrals were places of great religious and cultural importance. The universities were the places were the people from the high class were educated.
All three types of buildings managed to survive to the present and to be modern day representatives of the once dominant and glorious Gothic architecture across Europe. These types of buildings managed to survive mainly because they were all objects of great importance and value, they represented status, wealth, knowledge, religion, tradition, culture, and nowadays they are still seen as such. The Gothic architecture can be seen in most of Western and Central Europe, and one of the best representatives of this type of medieval architecture are the cities of Prague in the Czechia (till recently Czech Republic) and Cologne in Germany.
