On August 30, 2006 in Sweden, Håkan Nordkvist came home to find water pooling on his kitchen floor.
Assuming it was a leak, he gathered some tools and, opening the kitchen sink cabinet, reached his arm in to feel for the piping.
But he reached farther than he’d expected.
I had to crawl inside the cabinet, and as I did so, I discovered that it just continued. So I kept on crawling further and further into the cabinet. In the end of the tunnel I saw a light, and when I got there, I realized I was in the future.”