Considering the Choiseul in Bordeaux?
A VT member wrote the following comment about visiting Bordeaux:
Great Views for Small People - Tour Pey-Berland by aaaarrgh
I love climbing tall things to see the view, the Tour Pey-Berland is THE place to do it in Bordeaux! For 5 euros (2007) you can climb up the stone spiral staircase to a viewing platform with 360 degree views of the city. And a history of the development of Bordeaux on tableaux around the walls. Don't forget there is also a further flight of stairs which takes you to a 50m platform around the spire. Though you need to be the size of a midget to get through the door!!
Tour Pey-Berland was built as the bell tower of the next-door cathedral in the 1440's. The cathedral was not thought to be strong enough to take the movement of the new bells. Today the Pey-Berland tower contains a bell weighing eight tonnes - I expect god only knows how they got it up there!!