May 16 - Ronan Point tower block in London collapses after a gas explosion, killing four occupants.
August 6 - The first steel columns for the World Trade Center in New York City are put into place by Karl Koch Erecting, at what will become the southwest corner of One World Trade Center (North Tower)
The Calgary Tower in Calgary, Canada is opened.
Lake Point Tower in Chicago, designed by Schippereit-Heinrich Associates is completed.
The Heinrich-Hertz-Turm in Hamburg, Germany is completed.
The National Gallery of Victoria in Melbourne, Australia, designed by Sir Roy Grounds is completed.
The Neue Nationalgalerie in Berlin, Germany, designed by Mies van der Rohe, is opened.
The Nozema Tower Wormer in Wormerland, Netherlands is completed.
The Olympiaturm in Munich, Germany is opened.
The Tower of the Americas in San Antonio, Texas is completed.
The Standard Bank Centre in Johannesburg, South Africa is completed.
The History Faculty of the University of Cambridge, England, designed by James Stirling, is completed.
Christ Church Picture Gallery in Oxford, England, designed by Powell and Moya, is opened.
Aalto Center in Seinäjoki, Finland, designed by Alvar Aalto, is completed.
New building for the São Paulo Museum of Art (MASP) in Brazil, designed by Lina Bo Bardi, is built.
Saint Mark's Coptic Orthodox Cathedral in Cairo, Egypt, is consecrated.
Pacific Coliseum in Vancouver, designed by W. K. Noppe, is opened.
One Kemble Street (offices) in London, designed by George Marsh of Richard Seifert's practice, is completed.
Cables Wynd House ("Banana Flats"), Leith, Scotland, designed by Alison & Hutchison & Partners (Robert Forbes Hutchison, senior partner; Walter Scott, partner in charge), is completed.
American Academy of Arts and Letters Gold Medal – Buckminster Fuller.
AIA Gold Medal - Marcel Breuer.
Architecture Firm Award - I.M. Pei & Partners.
RAIA Gold Medal - Roy Grounds.
Royal Gold Medal - Richard Buckminster Fuller.
July 27 - Otto Eisler, Czech architect (b. 1893)
1968 in architecture Wikipedia
The year 1968 in architecture involved some significant events.