There is an almost endless list of historical important buildings that could go through the Lego Architecture system. A lot of people are inspired by these landmarks and the Architecture theme; then go and build their own. Markus created an awesome MOC based on the Santa Maria della Salute in Venice Italy. A baroque style Roman Catholic church with an iconic dome. Considering its scale, this Lego Santa Maria della Salute is about as accurate as you can get to the real thing. Markus even won a nomination from the recent Brickworld 2015 for Best Small Building.
You can find the Lego Santa Maria della Salute here: https://www.flickr.com/photos/moriartus/18839011109/