About an hour southeast of Belgrade, Serbia, is a small city called Smederevo. There is an amazing fortress there, and we spent a day there recently, exploring the fortress. It was built in the 15th century.
Swallows and pigeons have taken to nesting in the fortress walls.
Apparently, so have some honey bees. As we were exploring the fortress, we heard that all too familiar buzz of bees coming and going from their hive on a warm day.
Upon further searching, we found their entrance on the outside of the fortress wall, about 40 feet up in the air!
We couldn’t clearly see their entrance, but it was obvious that the bees had taken up residence at the long abandoned fortress.