MOSTEIRO DOS JERONIMOS THE CONSTRUCTION OF THIS16TH CENTURY MONASTERY BEGAN IN THE REIGN OF DOMMANUEL I TO CELEBRATE THE DISCOVERY OF THE SEAROUTE TO INDIA.IT WAS FINISHED UNDER DOM JOAOIII, 1502 1557. IT IS ONE OF THE MOST IMPORTANTBUILDINGS IN PORTUGAL AND HAS BEEN CLASSIFIED BYUNESCO AS WORLD HERITAGE SITE.CASTELO SAO JORGE AND LISBON INTERPRETATIONCENTE OLISIPONIA. THE CASTLE IS A LIVING MEMORYOF EVENTS THAT HAVE SHAPED THE HISTORY OFPORTUGAL, HAVING BEEN IN THE HANDS OFROMANS,SUEVIANS,VISIGOTHS AND MUSLIMS.IT WASREBUILT IN THE 1940S AND IT HAS BEEN RECENTLYRENOVATED.FROM THE CASTLE YOU CAN VISTIT THEMEDIEVAL QUARTERS OF ALFAMA AND MOURARIA.SE CATHEDRAL OF LISBON. LISBON CATHEDRAL, THESE WAS BUILT BY THE FIRST KING OF PORTUGAL, DOMAFONSO HENRIQUES 1109 TO 1185. ITS INTERIORSTAKES THE FORM OF A LATIN CROSS WITH 3 NAVES. THE12TH CENTURY BAPTISMAL FOUNTAIN WHERE ST ANTHONYWAS CHRISTENED, AND THE GOTHIC CHAPEL WITH ANATIVITY SCENE BY MACHADO DE CASTRO ARE ALSOINTERESTING SIGHTS.TORRE DE BELEM, THE TOWER OF BELEM WAS BUILT INAN EFFORT TO DEFFEND THE ESTUARY OF THE TAGUSRIVER. KING DOM JOAO II WANTED TO EXCLUDE HOSTILESHIPS FROM THE RIVER, BUT IT WAS ONLY HISSUCCESSOR DOM MANUEL WHO ENDED UP BUILDING THETOWER. IT WAS DESIGNED BY ARCHITECT AND SCULPTORFRANCISCO ARRUDA,WITH NOTABLE TRACES OF MOORISHINFLUENCE. IT IS A UNESCO WORLD HERITAGE SITE.PALACIO DA AJUDA. THIS ROYAL PALACE BUILT IM THE19TH CENTURY AFTER A EARTHQUAKE DESTROYED THE OLDPALACE, WAS NEVER FINISHED COMPLETELY. IT HAS ACLASSICAL FACADE AND A PRECIOUS LIBRARY.MOST OF THESE SITES ARE CLOSED ON MONDAYS.