II tried to visit Pompeii last year. I managed to see a little bit of it and indeed is impressive and almost overwhelming.
It is amazing to see the structures and things that survived the Vesuvius eruption, and there is quite a lot still standing.
I managed to take some shots with my phone as at that point my Nikon had already crashed on the cement from the balcony (a loss).
Pompeii 
Here is a cool video of then and now
