Myst has always been one of my favourite games. For those who remember, Myst was an adventure game where you, the stranger, land in a bizarre world where people teleport to new locations via books. Looking at The Secret Door, a new doohicky created by Safestyle utilising the Google Indoor Maps API, I get a rather Myst-y vibe.
Essentially, clicking the door knocker on the top left will send you to a new place in the world, whether that be an antiques shop, an arcade or a sauna. You can explore each location, complete with transition effects very similar to the early Myst games.