This　paper　uses　analytical,　numerical　and　experimental　approaches　to　investigate　the　seismic　protection　of　freestanding　non-symmetrical　objects　through　a　simple,　although　efficient　method　of　locating　them　on　sloped　bases.　A　novel　model　is　proposed　for　a　non-symmetrical　block　with　a　flat　bottom　rocking　on　a　compliant　sloped　base.　Pseudo-static　analytical　results　based　on　this　model　are　used　to　predict　the　optimum　base　slope　for　improving　the　rocking　behavior　and　show　that　the　proposed　method　will　be　more　effective　for　blocks　that　are　smaller,　stockier　and　more　non-symmetrical.　Numerical　and　experimental　results　are　then　used　to　demonstrate　the　efficacy　of　the　proposed　method　and　show　that　the　trends　identified　with　the　pseudo-static　analytical　results　are　also　applicable　when　the　dynamic　behavior　of　the　block　is　taken　into　account.　From　the　results　in　this　paper,　the　use　of　sloped　bases　could　be　a　viable　method　for　the　seismic　protection　of　freestanding　non-symmetrical　objects.　The　advantages　of　the　sloped　base　method　are　that　it　is　financially　cheap,　it　does　not　require　any　space　around　the　object,　and　it　does　not　require　moving　parts　or　intrusive　mechanical　connections.　The　main　application　of　the　sloped　base　method　considered　in　this　paper　is　the　seismic　protection　of　freestanding　historical　artifacts　in　museums,　but　it　could　also　be　used　for　other　types　of　freestanding　objects　with　suitable　geometry.