There are places in North America where you can stand in Canada and the US simultaneously. A massive, historic home straddles Stanstead, Quebec and Plain, Vermont, for example. You can enter the house from both countries.
Anthropologists probably have something deep and insightful to say about why Derek and I are drawn to water. All we know is that we feel calmer and happier around a body of water of just about any kind. Bigger than a puddle but not necessarily an ocean.