The Raven?

Question

What is it about these stories and poems by Edgar Allan Poe that has made these stories classics (beyond the fact that they were written in the 18th century).

Stories in question:
The Raven.
The Fall of the House of Usher.
Murder in the Rue Mourge.
The Tell Tale Heart

I have always loved the poem The Raven but I was wondering why do others like them and what has set them apart from other stories?

I thank you in advance for your insight?

Answer 1

Imagery and maddness of unreliable narrators. Truely unique.