These are photos from Slussen, a most probably soon to be demolished interchange and lock in central Stockholm. The demolition has been hugely debated in Stockholm between the side who wants to restore or rebuild the current construction and the side who wants a new, modern solution. The debate has led to significant delays, but as it looks now the latter side seems to be winning.
Above: The opening of Slussen in 1935
Below: Slussen today
“Stop the madness, save Slussen”
More reading about Slussen on Wikipedia