A poultice partially covers a gargoyle to draw out copper staining and salt

A construction worker rehabilitates a window arch, Southeast Tower, West Block

Two construction workers replace cooper roofing, West Block

Patriotism meets technology at the Mosaika Sound and Light Show on Parliament Hill in Ottawa

Exterior view of East Block facing the main lawn

Exterior view of an entrance to East Block showing stairs, wooden doors, and surrounding arched windows

Exterior view of the Library of Parliament

Two construction workers work on the roof of the Southeast Tower, West Block

The newly replaced copper roof of the Southeast Tower, West Block shines in the sun

A monument to Robert Baldwin and Sir Louis-Hippolyte Lafontaine, shows the two men standing side-by-side mounted on a semi-circular base

Centennial Flame

Centre Block