1) Medieval architecture 
Llotja (ec, wc; Loncha; Lonja) is a Catalan/Valencian term used to define buildings that, during the Middle Ages, were used for commercial transactions. Others, in feudal towns, were used for fishing and livestock market. == Llotjas of the former Crown of Aragon == The existing Llotjas of the former Crown of Aragon are: == Llotjas built after Span...