Saint Lawrence Seaway
You don’t often see a river running under a river! This is the Welland Canal, a part of the Saint Lawrence Seaway which is the system of canals that permits ocean-going vessels to travel from the Atlantic Ocean to the Great Lakes as far as Lake Superior. You can see the size of of the ships a little further South at the edge of Lake Erie (thumbnail #2), and there’s another to the North. 10 villages were submerged to allow the construction of the Saint Lawrence Seaway, and apparently a few remnants of sidewalks and building foundations can…