Mentioned by planetware.com
14 Top-Rated Tourist Attractions in Ottawa | PlanetWare
"The Parliament Buildings, in all their splendor of Victorian Gothic sandstone, are quite an imposing sight on the 50-meter-high Parliament Hill (Colline du Parlement) looking out over the Ottawa River. The Parliamentary Library, at the back of the building opposite the entrance, is a wonderfully furnished octagon that was untouched in the 1916 fire. You can explore the sprawling historic Centre Block on a guided tour, and the public can also attend a question period when the government is in session."