We all know Alfred Hitchcock is the "Master of Suspense," and the best way of proving it is by watching The Birds. Released in 1962, the film revolves around a series of unexpected and unexplained violent bird attacks on people living in California.
The Cabinet of Dr. Caligariis a 1920 German silent horror film that tells the story of an insane hypnotist who uses a somnambulist to commit murders. Starring Werner Krauss, it is considered to be one of the best horror films of all time.