What should I build in MInecraft? - 3

I was wondering what to build in Minecraft. I need something so simple but cool.

Himeji Castle isn't too difficult.

Thank you, i'll build eidinghausen castle.

You could maybe build a zoo, your own created village, or a hotel.

Cool, i will do too.

Build a Viking village or a small town or something Japanese what I sometimes do is build a mountain and with details and such and a huge castle overgrown with tendrils