Hornet's Nest - Hide-A-Way Hills, Ohio

With the leaves falling from the trees, I have begun to notice things that have been around all summer.

Here's a shot of a rather large nest right outside my back window.

From this view, I assumed this was a paper wasp nest, but after researching a bit, I now believe it to be a European Hornet's nest which is the only true hornet in Ohio. Any ideas?
Here's a video of an active nest from somebody much braver than I.