 Within Rome, the huge domed church of Sant'Andrea della Valle was designed by Giacomo della Porta before the completion of St Peter's Basilica, and subsequently worked on by Carlo Maderno.This was followed by the domes of San Carlo ai Catinari, Sant'Agnese in Agone, and many others.Christopher Wren's dome at St Paul's Cathedral (London, England), the domes of Karlskirche (Vienna, Austria), St. Nicholas Church (Prague, Czech Republic), and the Pantheon (Paris, France) all pay homage to St Peter's Basilica.