Challenge has finished
That is, taller than they are wide and don't necessarily have to be skyscrapers. Towers don't count unless they are part of the larger structure or they can accommodate people. (Ranger tower, yes, TV towers, no.) Other than that, be creative.
Monday, 28th February, 2011 (GMT)
Monday, 7th March, 2011 – Sunday, 13th March, 2011 (GMT)
Monday, 14th March, 2011 – Sunday, 20th March, 2011 (GMT)
Capture date rules:
Maximum number of entries per user:
Maximum number of entries in challenge: