▁next ▁to ▁Las ▁G lor ias ▁Square ▁is ▁well ▁known ▁for ▁its ▁ag gress ive ▁architect ural ▁style . ▁ ▁F erm ín ▁V ás quez ▁Ar qu itect os , ▁the ▁group ▁that ▁designed ▁the ▁building , ▁did ▁not ▁want ▁the ▁building ▁to ▁appear ▁as ▁a ▁sho pping ▁center . ▁ ▁This ▁led ▁to ▁the ▁design ▁of ▁a ▁wall - less , ▁continuous ▁space , ▁with ▁ram ps ▁and ▁elev ated ▁“ f lo ors ” ▁that ▁loop ▁around ▁the ▁entire ▁structure . ▁ ▁Notable ▁items ▁include ▁furn iture , ▁cl othing ▁and ▁books ▁on ▁the ▁upper ▁flo ors , ▁and ▁the ▁second - hand ▁items ▁are ▁primarily ▁on ▁the ▁ground ▁floor ▁level . ▁ ▁The ▁market ▁is ▁open ▁on ▁Mond ays , ▁Wed nes days , ▁Frid ays , ▁and ▁S atur days . ▁ ▁El ▁Mer cat ▁G otic ▁ ▁El ▁Mer cat ▁G otic ▁is ▁an ▁ant ique ▁market ▁located ▁in ▁the ▁g oth ic ▁quarter ▁of ▁Barcelona , ▁next ▁to ▁the ▁C ated ral ▁de ▁Santa ▁E ul à lia . ▁ ▁The ▁market ▁show cases ▁second hand ▁items , ▁mostly ▁art ▁pieces . ▁ ▁Some ▁notable ▁items ▁include ▁cer am ics , ▁cand les , ▁doll s ▁and ▁other ▁rare ▁objects . ▁ ▁The ▁market ▁opens ▁every ▁Th urs day ▁except ▁in ▁August . ▁ ▁F ira ▁de ▁Nad al ▁de ▁la ▁S agr ada ▁Famil ia ▁ ▁The ▁F ira ▁de ▁Nad al ▁de ▁la ▁S agr ada ▁Famil ia ▁is ▁an ▁annual ▁open - air