Don Cayo, Vancouver Sun

Aga Khan, the hereditary leader of the world’s 15 million Shia Ismaili Muslims pictured during an interview in Toronto, Nov. 23, 2008.

The Aga Khan, the Ismaili Muslim spiritual leader who ended an eight-day Canadian tour in Vancouver less than two weeks ago, is back in Ottawa today to open a new architectural landmark on Sussex Drive.

The $50-million building is to be the permanent home of the Ismaili Imamat delegation – in effect, an embassy for representatives of his 15 million followers who are scattered in 25 or 30 countries around the globe.