var a , ▁Cris p ano , ▁P ign at elli , ▁Card one ▁and ▁finally ▁the ▁Ad im ari ▁marqu ises ▁of ▁Bom ba . ▁After ▁their ▁last ▁he ir ▁died ▁without ▁he irs , ▁Arch i ▁returned ▁to ▁the ▁royal ▁direct ▁control . ▁ ▁Main ▁s ights ▁▁ ▁San ctu ary ▁of ▁San ▁Roc co ▁Par ish ▁church ▁of ▁Santa ▁Maria ▁dell ' O l mo ▁Church ▁of ▁St . ▁John ▁the ▁Bapt ist ▁Church ▁of ▁Madonna ▁del ▁Ros ario ▁Ch u S ant iss imo ▁Salv atore . ▁ ▁Rem ains ▁of ▁the ▁medieval ▁castle . ▁Character ized ▁by ▁a ▁ 1 6 th - century ▁tower , ▁the ▁castle ▁was ▁almost ▁square ▁with ▁cyl ind rical ▁corner ▁to wers . ▁The ▁construction ▁is ▁in ▁local ▁stone ▁and ▁mort ar . ▁Some ▁elements ▁of ▁the ▁castle ▁show ▁that ▁the ▁structure ▁has ▁been ▁rem ode led ▁over ▁time . ▁In ▁World ▁War ▁II ▁it ▁was ▁used ▁as ▁a ▁ ▁military ▁out post ▁by ▁the ▁British , ▁and ▁was ▁partly ▁destroyed ▁by ▁the ▁Germ ans . ▁Rem ains ▁of ▁the ▁fort ified ▁walls ▁of ▁the ▁town ▁Baron ial ▁Palace . ▁It ▁is ▁a ▁fort ified ▁quadr angular ▁building ▁with ▁corner ▁to wers ▁and ▁bast ions . ▁It ▁is ▁located ▁in ▁the ▁historic ▁center ▁in ▁a ▁dominant ▁position ▁on ▁the ▁town ▁itself . ▁Pal azzo ▁C ieri ▁Pal azzo ▁Angel ucci - C ang iano ▁Pal azzo ▁L ann ut ti ▁Pal azzo ▁Pom ilio ▁ ▁Arch ae ological ▁site ▁of ▁F onte