| | Historic Places - The Register (Site not responding. Last check: 2007-10-20) |
 | | Diefenbunker National Historic Site of Canada is a large, underground bunker located at Carp, Ontario, just south of the nation's capital. |
 | | The Diefenbunker itself is a fortified concrete structure extending four storeys below ground: its air intake and exhaust elements, escape hatches, deep wells and sewage lagoons are disguised in the man-made contours of the surrounding landscape. |
 | | The heritage value of the Diefenbunker National Historic Site of Canada lies in the comprehensive physical evidence it presents confirming Canada's determination to survive and function as a nation during a nuclear attack as illustrated by its location, disguised setting, defensible design, and the heavily fortified construction. |
| www.historicplaces.ca /rep-reg/affichage-display_e.aspx?print=true&id=4169 (765 words) |