One of the two beautiful castles in the town of Sinaia. I am talking about Pelisor Castle... http://prinochideturist.wordpress.com/2014/02/20/castelul-pelisor-pelisor-castle/
Neamt fortress, one of the great bastions of Moldova. It is strongly connected to the most important ruler of Moldova, Stefan cel Mare.
Castle Bran, famous and well know for it's affiliation with the Dracula stories... http://prinochideturist.wordpress.com/2013/08/25/castelul-bran-bran-castle/