i watched the video on you-tube and worked out the chords from that, this is pretty spot
the chord changes are pretty quick!
[ Tab from: http://www.guitaretab.com/t/towers-of-london/100940.html ]
the intro is a shuffle of the G chord (320033) strummed once down, then shuffle ur hand
across the strings in an up down motion and then the chord played again, like a fill
chords, repeat this until the rest of the chords start, thats the strumming pattern.
EI--3--------------2---------------3-----------------|
BI--3------------1-3-----------1---3-----------------|
GI--0------------0-2-----------0---0-----------------|
DI--0----------2-2-------------2-2-0-----------------|
AI--2----------2-3-------------3-2-2-----------------|
EI--3------------------------------3-----------------|
and the pretty much repeats that the whole way through