Unlikely though that sounds, yes, it really was. It's an annual event (?) organized by the World Toilet Organization, complete with its own Web site. This year's event was actually designated by the United Nations General Assembly. If ever an organization was full of . . . well, what you use a toilet to get rid of . . . it's that one, so their recognition was doubtless highly appropriate! (I would say "long overdue", but that would suggest political constipation - something else for which the General Assembly is renowned!)
The Telegraph celebrated the occasion by publishing a series of pictures of 'Loos with views'. Here are a couple from their gallery.
There are more images at the link.
The Telegraph found the pictures in a book called 'Good Loo Hunting'. I'm not sure whether it's suitable for reading anywhere else but on the porcelain throne, but it certainly looks entertaining . . .