<prompt> Translate the following text to EnglishPantheon ya mviringo Piazza della Rotonda ni ukumbusho uliohifadhiwa vizuri zaidi wa Roma ya kale na inashindana na Colosseum katika mchanganyiko wake wa kifahari cha utulivu na nguvu kubwa.  <response>: The circular Pantheon Piazza della Rotonda is the best-preserved monument of ancient Rome and rivals the Colosseum in its combination of quiet elegance and sheer massive power. 