I am not sure how to comment on this gigantic MOC from Michał Kaźmierczak. But seriously this giant MOC is awesome! The whole project is taller than a normal adult man but no details of how many pieces of bricks being used here.
The project reflects a scene from blockbuster film The Hobbit (2013). Erebor is also known as Lonely Mountain in Middle Earth, which was once a greatest Dwarves Kingdom.
Michał Kaźmierczak‘s Erebor is as huge as the original scene with the scale of Lego minifigs. There are more photos from original post in flickr here.