Prague Castle (Czech Republic). 'Looming high above the Vltava’s left bank, this outrageously outsized fortress conjures up childhood fairy tales of a good king watching benevolently over his people.' http://www.lonelyplanet.com/czech-republic/
Light The natural light coming in from the window in this photo manages to create outstanding pasterns which carry out through the room, this is an incredible way of light interacting with a building.