Never mind the bollards - it's public art in Cardiff

"Next time you're in Cardiff city centre you may spy people peering intently into metal bollards dotted around the Hayes and St David's shopping centre.

They're looking at Post Secrets by Jane Edden. Monochrome figurines can be seen inside the metal bollards by looking through a small peep hole. "

http://news.bbc.co.uk/local/southeastwales/hi/people_and_places/arts_and_culture/newsid_8493000/8493282.stm