Remember the Hot Wheels sets and doll houses that you had in your room? Now imagine a world made of them and you have Hamburg's Miniatur Wunderland.
Gerrit and Frederik Braun have constructed 'Miniatur Wunderland' a huge model with trains, airports, casinos and much more. And it's so detailed that this project is in the Guinness World Records 2016 book, for having the largest model train set and airport.
And Google decided to take us all on a 'world tour' of it with a street view which is just awesome.
Check out the amazing video: