<prompt> Translate the following text to EnglishMchoro huu, ambao kwa sasa umewekwa kama aina ya mlango wa ushindi kwa kona ya kusini mashariki ya Central Park, unaonyesha uwezekano wa kutisha wa maumbo ya tetrahedral, ambapo nyuso za pembetatu zina mwanga wa nguvu ambao hauna muundo wa mstatili.  <response>: 1961, currently placed as a sort of triumphal entryway to the southeast corner of Central Park, demonstrates the unsettling possibilities of tetrahedral shapes, where the triangular faces have a dynamic lightness lacking in rectangularly based structures. 