Cut Off Corner

A different type of corner instead of a tower. The outside space is used to commemorate one of the greatest explorers, Guy de Yoyo*, while there seems to be a monster club in the wall?

It was tricky enough to get the geometry right and get it looking good. This trial and error is were most of the time went in building it.

*famous for discovering the second highest waterfall on the Discworld (Witches Abroad).