5 April - Akashi Kaikyō Bridge, Japan, longest suspension bridge in the world by the length of central span, designed by Satoshi Kashima, opened.
16 April - City of Arts and Sciences, Valencia, Spain, designed by Santiago Calatrava and Félix Candela, inaugurated.
31 May - Saint Paul's Cathedral, Wellington, New Zealand, opened.
June - Jean-Marie Tjibaou Cultural Centre, New Caledonia, designed by Renzo Piano, opened.
6 July - Chek Lap Kok Airport in Hong Kong, designed by Norman Foster, opened.
15 October - Bellagio Hotel and Casino in Las Vegas, designed by Marnell Corrao Associates, opened.
Kiasma Museum of Contemporary Art, Helsinki, Finland, by Steven Holl Architects, opened.
Waterside (building) at Harmondsworth, England, international headquarters of the airline British Airways, designed by Niels Torp, opened.
Lucerne Culture and Congress Centre in Switzerland, designed by Jean Nouvel, opened.
Jin Mao Building in Shanghai, designed by Skidmore, Owings & Merrill, completed.
Petronas Towers in Kuala Lumpur, designed by César Pelli, completed; it becomes the tallest building in the British Commonwealth and tallest building in the world (until 2004).
B 018 nightclub in Beirut, designed by Bernard Khoury.
Polaria and the Polar Environment Centre in Tromsø, Norway
Alvar Aalto Medal – Steven Holl
Architecture Firm Award – Centerbrook Architects and Planners
European Union Prize for Contemporary Architecture (Mies van der Rohe Prize) – Peter Zumthor for Kunsthaus Bregenz
Grand Prix de l'urbanisme – Christian Devillers
Grand prix national de l'architecture – Jacques Hondelatte
Praemium Imperiale Architecture Laureate – Álvaro Siza
Pritzker Prize – Renzo Piano
Prix de l'Équerre d'Argent – Rem Koolhaas
RAIA Gold Medal – Gabriel Poole
Royal Gold Medal – Oscar Niemeyer
Stirling Prize – Norman Foster and Partners, American Air Museum, Imperial War Museum, Duxford
Thomas Jefferson Medal in Architecture – Jaquelin T. Robertson.
Twenty-five Year Award – Kimbell Art Museum
Park Hill, Sheffield, 1961 flatted public housing in South Yorkshire, England, is Grade II* listed, making it the largest listed building in Europe.
13 June – Lúcio Costa, Brazilian architect and urban planner (born 1902)
29 August – Erik Asmussen, Danish-born architect (born 1913)
31 October – Rosemary Stjernstedt, British architect (born 1912)
14 November – Albert Frey, Californian "desert modernist" architect (born 1903)
1998 in architecture Wikipedia
The year 1998 in architecture involved some significant architectural events and new buildings.