This wiki page documents the Balloon House Easter Egg concealed in Battlefield 1, on the map Verdun Heights.
To trigger the Easter Egg, 3 wine bottles as well as 3 weather vanes have to be destroyed in any order. 5 seconds later a house hanging from 3 red, blue and white balloons can be seen flying over the horizon to the west of the German spawn. It will eventually land near the French spawn in the south-western part of the map.
