Considering the Filippov Hotel 1 in Saint Petersburg?
A VT member wrote the following comment about visiting Saint Petersburg:
The picture above, this... by Kostyantyn
The picture above, this picture and some of the pictures hereafter show variety of architecht techniques in building all kinds of churches and cathedrals.
This one is St. Isaac's Cathedral. Originally there was built a small church and later it was several times rebuilt until its current status.
Interesting fact is that it took 40 years to build current version of the Cathedral.