At the FAS Convention 2011 I went around a bunch of the telescopes of the Institute of Astronomy at the University of Cambridge. There is quite an impressive [bunch of them].
[The Three Mirror Telescope] (3MT) is quite impressive, mostly cause it just doesn't look like it will work:
I also got to see, built in 1864 the 8 inch Thorrowgood Telescope:
which was nicely looking at some sunspots:
The most impressive in terms of size that I saw was the [Northumberland]:
In short, if you get chance a visit around the telescopes of the IoA is very much worth it.
A few more pictures taken at the FAS Convention can be seen [on flickr].
