Dfenz builds an amazing Train Station and shares it with us on Eurobricks:

Dfenz builds the Heuston Train Station

Some large MOCs hold back on the detail, but not this one. This is a huge SHIP (Seriously Huge Investment in Parts) and must be quite the labor of love for Dfenz. It was displayed at Dun Laoghaire (Dublin) model railway exhibition and you can see more pictures and join the discussion in this topic on Eurobricks.