And Niagara Falls. I grew up here and in my opinion, it is most spectacular in winter. I think it is the only huge volume/width waterfall in the world that is located where there is a strong winter climate. Ice that breaks up from Lake Erie, above the falls, flows over the falls then jams up and totally covers the river in the gorge below the falls. And perpetual mist then freezes on everything to bury it all in ice. Really spectacular in winter.