Halfway along Water St, this oddly popular tourist magnet lures the cameras with its tooting steam whistle. Built in 1977, the clock's mechanism is actually driven by electricity; only the pipes on top are fueled by steam (reveal that to the patiently waiting tourists and you might cause a riot). It sounds every 15 minutes, and marks each hour with little whistling symphonies.
Once you have taken the required photo, spend time exploring the rest of cobbled Water St. One of Vancouver's most historic thoroughfares, its well-preserved heritage buildings contain shops, galleries and resto-bars. Be sure to cast your gaze above entrance level for cool architectural features.