The Saint Nicolas Church - Brussels, Belgium

Founded in the 11th century and bombed in 1695 (like many other sites in Brussels) it's been rebuilt several times.

I entered, sat, looked and exited. And it's still standing.

I actually visited a few churches in Brussels (St Michaels Catherderal was especially grand) but the thing I find most interesting about this church is that it has smaller buildings (currently used as retail stores and food shops etc) attached to to exterior approximately two stories high so its kind of hidden from 3 of the four sides.