Climbing up stairs has been his second favourite past time now, it's not the first cos we don;t have stairs around the house, but just outside our flat, there are two flights of stairs which he loves to go up and down it. They are alittle too steep for him to do it by himself, so mummie always helps.
Those flight of stairs in the video are taken in Basel, next to the river, a twice the size of boat quay. When he sees stairs, he runs towards them, then looks up at me, as if saying, 'help me now'. Guess his next mile stone would be climbing up stairs on his own.