ers ▁along ▁the ▁App ian ▁Way . ▁The ▁ma us ole um ▁dates ▁from ▁around ▁ 3 0 ▁B . C . ▁ ▁It ▁is ▁a ▁large ▁circular ▁building ▁with ▁a ▁diameter ▁of ▁ 3 5 ▁m , ▁decor ated ▁with ▁a ▁fr ie ze ▁and , ▁originally , ▁had ▁a ▁cone - sh aped ▁roof . ▁The ▁base ▁offered ▁seats ▁where ▁trav ellers ▁could ▁rest ▁out ▁of ▁the ▁sun . ▁▁ ▁Near ▁the ▁ma us ole um , ▁the ▁arch ae ologist ▁Luigi ▁Can ina ▁( 1 7 9 5 - 1 8 5 6 ) ▁built ▁a ▁brick ▁wall ▁containing ▁architect ural ▁fragments . ▁These ▁were ▁originally ▁thought ▁to ▁have ▁been ▁from ▁the ▁Cas al ▁Rot ondo ▁but ▁this ▁is ▁now ▁disput ed . ▁Can ina ▁dedu ced ▁from ▁a ▁small ▁piece ▁of ▁ins cription ▁with ▁the ▁name ▁" C otta " ▁that ▁the ▁monument ▁had ▁been ▁built ▁by ▁M . ▁A ure lius ▁C otta ▁Mess all inus ▁for ▁his ▁father , ▁Marcus ▁Val er ius ▁Mess alla ▁Cor vin us , ▁but ▁this ▁ins cription ▁and ▁other ▁architect ural ▁fragments ▁are ▁now ▁assumed ▁to ▁have ▁come ▁from ▁a ▁smaller ▁monument ▁at ▁the ▁site , ▁and ▁they ▁may ▁have ▁nothing ▁to ▁do ▁with ▁Mess alla ▁Cor vin us . ▁ ▁References ▁ ▁Category : An cient ▁Roman ▁architecture ▁Category : Build ings ▁and ▁structures ▁in ▁Rome ▁Category : M aus ole ums ▁in ▁Rome <0x0A> </s> ▁Pa ula ▁Christ ine ▁Hamm ond ▁ ▁( née ▁B ars by ) ▁(