Just so hard to believe. We have actually stopped thinking and robot is doing our jobs for us. If you want to build a house today, you pay an architect, house planner, surveyor, designer and an engineer. But in those ancient times, this is an idea of one man thinking put into reality. You can imagine the kind of building materials used as it still stand strong till this day. Czech is really a nice place. I have a wish to be there. Thanks for bringing out the beauty of Czech @czechglobalshost