Mama
http://en.wikipedia.org/wiki/Mama_(2013_film)
Won't lie, I didn't love this film - it peaks and troughs pretty badly. But it had some interesting effects, great performances from the surprisingly tolerable kids and a pretty spooky concept. Has a hint of fairytale about it.
You mentioned
Nosferatu. If you enjoyed the creepiness of that you should really look more into German Expressionism.
The Cabinet of Dr. Caligari is a must, and its short running time is very digestable. Artistically beautiful - you know they actually painted on a lot of the shadows. Uninspired cinematography but the performances and sets are dynamic enough.
http://en.wikipedia.org/wiki/German_Expressionism