Three-Country Cairn in Kiruna

You're standing at Treriksröset, the spot where Sweden, Norway and Finland meet. Have a look out over Lake Goldajärvi. About ten metres from the shore sits a beige cone of concrete with its top cut off, resting on a pile of stones. That's exactly where three national borders come together. It's the northernmost tripoint on the planet. It's also Sweden's northernmost point and the westernmost point of mainland Finland.