<prompt> Translate the following text to EnglishAltar kuu kubwa, ambayo ni wakfu kwa Mtakatifu Catherine wa Alexandria, inaonyesha baadhi ya matukio kutoka martyrdom mtakatifu katika mfululizo wa paneli sumptuously gilded.  <response>: The enormous main altar, which is dedicated to St. Catherine of Alexandria, shows some scenes from the saints martyrdom in a series of sumptuously gilded panels. 