vasco da gama tower in the park of nations. vasco da gama tower built for the expo `98 1998 lisbon world exposition in lisbon,

architecture beautiful blue building business capital city cityscape construction design engeneering engineering europe exhibition expo exposition famous futuristic gama high landmark landscape lisboa lisbon magnificent metal modern observation outdoor park portugal portuguese river sightseeing sky skyscraper structure tagus technology telecabine tourism tower travel urban vasco vertical water