My top 10 buildings
1. Battersea Power Station, London, Great Britain
(at least in its original state; much less so in its current redeveloped form)
6. The Firth of Forth railway bridge, near Edinburgh, Scotland, Great Britain
… plus any of the grand gothic cathedrals (from Notre Dame in Paris or the Stephansdom in Vienna to Cologne Cathedral, Chartres Cathedral, Wells Cathedral, Canterbury Cathedral … and any on a similar scale. I just couldn't single any one of them out …
… and then of course there are those buildings that would easily take the place of some of the buildings I've listed above, but which I haven't yet seen in the flesh, such as the pyramids of Egypt.
--- back to non-dark travel ---