▁series ▁of ▁wall ▁paint ings ▁dep ict ing ▁Norway ▁and ▁Os lo ▁between ▁the ▁wars ▁and ▁also ▁during ▁occupation . ▁They ▁also ▁dep ict ▁the ▁growth ▁of ▁commercial ▁activity ▁in ▁the ▁city , ▁including ▁the ▁rise ▁of ▁the ▁labour ▁movement . ▁Vari ous ▁monarch s ▁and ▁the ▁city ' s ▁patron ▁saint , ▁St . ▁Hall vard ▁are ▁also ▁dep icted . ▁ ▁City ▁Council ▁Hall ▁The ▁room ▁in ▁which ▁the ▁City ▁Council ▁meets ▁( B yst y res alen ) ▁is ▁semi - circ ular . ▁It ▁is ▁cl ad ▁in ▁o ak ▁and ▁t apest ries , ▁the ▁most ▁notice able ▁of ▁which ▁was ▁designed ▁by ▁Else ▁P oul sson , ▁the ▁nie ce ▁of ▁the ▁architect . ▁W oven ▁by ▁Else ▁Hall ing , ▁it ▁dep ict s ▁St . ▁Hall vard ▁and ▁the ▁seven ▁virt ues . ▁ ▁The ▁artist ▁hoped ▁the ▁design ▁would ▁rem ind ▁the ▁city ' s ▁polit icians ▁of ▁eth ics ▁and ▁good ▁decision making . ▁ ▁Nobel ▁Peace ▁Prize ▁ceremony ▁On ▁December ▁ 1 0 ▁( ann ivers ary ▁of ▁Alfred ▁Nobel ' s ▁death ) ▁each ▁year , ▁Os lo ▁City ▁Hall ▁hosts ▁the ▁Nobel ▁Peace ▁Prize ▁ceremony ▁in ▁which ▁the ▁annual ▁la ure ate ▁gives ▁his ▁or ▁her ▁lecture ▁and ▁is ▁awarded ▁the ▁medal ▁and ▁di pl oma . ▁A ▁pod ium ▁for ▁the ▁la ure ate ▁and ▁the ▁Nobel ▁Committee ▁is ▁ere cted ▁in ▁the ▁far ▁end ▁of ▁the ▁hall ▁for ▁each ▁ceremony . ▁The ▁Norwegian ▁Royal ▁Family ▁and ▁Prime ▁Minister