The Lego Art World Map features 11,965 pieces but it looks incredible boring to build and then you need to hang it on a wall.
I would rather build the Titanic, if I had the spare time to do such things.
Get yourself the Revell scale model kit about 18" long & $30. Glue and paints not include. A true scale model that requires real attention and care unlike Lego blocks.
Totally don't have a clue why supposed adults buy these ugly expense toy blocks. Guess it comes from my building both plastic kits and boats and planes from scratch as a kid. SMH.