▁be ▁" the ▁deep est ▁castle ▁well ▁in ▁the ▁world ". ▁The ▁down hill ▁Pf al z ▁of ▁T illed a ▁is ▁an ▁arch ae ological ▁open - air ▁museum ▁and ▁a ▁stop ▁on ▁the ▁scen ic ▁Roman es que ▁Road . ▁ ▁The ▁range ▁is ▁also ▁the ▁site ▁of ▁an ▁annual ▁tour ing ▁car ▁hill cl im bing ▁and ▁of ▁the ▁Ky ff hä user - B erg lauf ▁cross ▁country ▁running ▁competition . ▁The ▁range ▁is ▁a ▁popular ▁destination ▁for ▁h ik ers ; ▁the ▁Kaiser ▁Way ▁leads ▁across ▁the ▁Ky ff hä user ▁north wards ▁to ▁the ▁Har z ▁mountains . ▁ ▁See ▁also ▁ ▁List ▁of ▁mountains ▁and ▁hills ▁of ▁Th uring ia ▁ ▁References ▁▁ ▁S ven ▁F rot scher : ▁Der ▁Ky ff hä user ▁– ▁Natur , ▁Geschichte , ▁Archite ktur , ▁Den k male ▁Europ as . ▁Ar tern ▁ 1 9 9 6 , ▁ ▁External ▁links ▁ ▁Ky ff hä user ▁Monument ▁at ▁the ▁official ▁Th uring ia ▁tour ism ▁website ▁▁ ▁The ▁true ▁background ▁of ▁the ▁Ky ff hä user ▁legend ▁▁ ▁Category : Land forms ▁of ▁Th uring ia ▁Category : H ill ▁ranges ▁of ▁Germany ▁Category : K y ff hä user kreis ▁▁ ▁Category : For ests ▁and ▁wood lands ▁of ▁Th uring ia <0x0A> </s> ▁Par ma ▁V io lets ▁are ▁a ▁British ▁vio let - f lav oured ▁table t ▁con fection ery ▁manufact ured ▁by ▁the ▁Derby shire ▁company ▁Sw izz els ▁Mat low , ▁