2 8   ° C . ▁ ▁Population ▁ ▁Main ▁s ights ▁▁ ▁The ▁Mont s ac op a ▁vol cano ▁is ▁one ▁of ▁the ▁main ▁symbols ▁of ▁Ol ot . ▁It ▁has ▁a ▁cone ▁of ▁vol can ic ▁material ▁and ▁a ▁circular ▁cr ater . ▁From ▁above , ▁a ▁ 3 6 0 ° ▁pan or am ic ▁of ▁the ▁city ▁can ▁be ▁seen . ▁The ▁vol cano ▁also ▁has ▁a ▁chap el ▁on ▁its ▁top , ▁dedicated ▁to ▁Saint ▁Francis , ▁and ▁two ▁watch t ow ers ▁surrounding ▁the ▁cr ater . ▁The ▁ ▁old ▁town , ▁which ▁grew ▁up ▁in ▁the ▁ 9 th ▁century , ▁has ▁a ▁rich ▁cultural ▁her itage , ▁including ▁the ▁three - stor ied ▁ne o - class ical ▁clo ister ▁from ▁the ▁H osp ici ▁( char ity ▁building ), ▁the ▁church ▁of ▁la ▁Mare ▁de ▁Dé u ▁del ▁T ura ▁( pat ron ▁of ▁Ol ot ), ▁the ▁Renaissance ▁clo ister ▁of ▁El ▁Car me ▁( which ▁is ▁a ▁site ▁of ▁National ▁Cultural ▁Interest ), ▁and ▁the ▁Sant ▁Este ve ▁Par ish ▁Church , ▁which ▁was ▁built ▁in ▁ 1 7 6 3 ▁and ▁it ▁contains ▁several ▁art istic ▁tre asures , ▁including ▁an ▁original ▁El ▁Gre co ▁( Christ ▁carrying ▁the ▁Cross ). ▁Also ▁in ▁the ▁old ▁town ▁there ▁are ▁examples ▁of ▁Art ▁N ouve au ▁architecture , ▁like ▁the ▁Sol à - Mor ales ▁house . ▁ ▁P ain ting , ▁sculpt ure ▁and ▁cer am ics ▁have ▁been ▁the ▁key