Church Spire, Radio Tower, TV towers, and, if you look carefully Power Pylons...

If you look even more carefully you can see the power cables strung on the pylons. In the original, viewed at full size you can even see the guy ropes for the TV and radio towers. Considering the background elements are more than 25 Klm's away All I can say is the Canon 70-200 f/2.8 just continues to astound me as to how sharp you can make a zoom... I have had primes that couldn't resolve that level of quality