UNDERGROUND TRAINS

Two Canadian cities have subway systems — electric trains that carry people through underground tunnels and some aboveground sections. Construction began on Toronto’s subway, shown above, in 1949 and the first trains started travelling the 7.4–kilometre route in 1954. (It's now more than 10 times that long.) Montreal’s system, known as the Metro, was built between 1962 and 1966, with more stations added in time for the 1967 World’s Fair, Expo 67. Each of its stations, many of which are named after famous people from Quebec history, was designed by a different architect.