Dear All,
this is actually my first entry for the #POBphotocontest by 
Topic of the week was "round", so I screened my pics for some round stuff.
A football made out of concrete, in a street in Vienna, near a soccer stadium.
A piece of art(?) from a recent art/science exhibition I had visited. Does it symbolize our planet? I have no idea.
A shrew's fiddle (or neck violin), a medieval torture & humiliation instrument. Through the big hole the head of the victim was forced, the 2 small ones were for the wrists. This one is from Castle Seebenstein.
This guy holds a round globe (from the Austrian National Library in Vienna).
A mysterious round hole in a rock near Thail in Lower Austria (if you want to know what it is about, you have to read on here).
A little sunflower from my garden.
Not so perfectly round, but tasty: Maki
The dial of this clock at the "Uhrturm" in Graz is more than 5m in diameter. The clocktower is about 700 years old! It is a must see, in case you visit the second largest city in Austria.
The cap of a mushroom is almost always round.
Finally, these circles would have been pretty round, too - if they were still fully available after app. 2000 years. This is a reconstruction from a Roman house in Carnuntum.