▁meters ▁above ▁the ▁floor ▁of ▁the ▁court . ▁With ▁a ▁rect angular ▁foot print ▁of ▁ 8 8 x 4 4 ▁meters , ▁it ▁is ▁consider ably ▁smaller ▁than ▁earlier ▁Greek ▁tem ples , ▁such ▁as ▁the ▁Temple ▁of ▁Ar tem is ▁at ▁E ph es os ▁and ▁the ▁Temple ▁of ▁Apol lo ▁at ▁Did y ma . ▁R ather ▁its ▁significance ▁lies ▁in ▁the ▁s oph istic ation ▁of ▁its ▁planning ▁and ▁architect ural ▁detail . ▁ ▁A ▁number ▁of ▁Jul io - Cla ud ian ▁em per ors ▁en rich ed ▁the ▁temple ' s ▁san ctu ary ▁in ▁turn . ▁In ▁the ▁mid - 1 st ▁century , ▁N ero ▁built ▁the ▁tower - alt ar ▁opposite ▁the ▁temple . ▁In ▁the ▁early ▁ 2 nd ▁century , ▁Tra jan ▁added ▁the ▁temple ' s ▁forec ourt , ▁with ▁port icos ▁of ▁p ink ▁gran ite ▁sh ipped ▁from ▁As wan ▁at ▁the ▁southern ▁end ▁of ▁Egypt . ▁▁ ▁The ▁Temple - San ctu ary ▁of ▁H eli opol itan ▁Ze us ▁was ▁ru ined ▁by ▁earth qu akes , ▁destroyed ▁and ▁pill aged ▁for ▁stone ▁under ▁The odos ius ▁and ▁again ▁under ▁Justin ian : ▁eight ▁columns ▁were ▁taken ▁to ▁Constantin ople ▁( I stan bul ) ▁for ▁incorpor ation ▁into ▁the ▁H ag ia ▁Soph ia . ▁Three ▁columns ▁fell ▁during ▁the ▁late ▁ 1 8 th ▁century . ▁ ▁Pres ent ▁condition ▁ ▁At ▁present , ▁six ▁columns ▁remain ▁standing ▁along ▁its ▁south ▁side ▁with ▁their ▁ent