The fourth week of revision

A comprehensive revision of the model

The terrain was first added

 The above-ground building is used for exhibitions and displays.The underground building is used for recreation and rest.

 And added stair connections for all rooms.

 And designed two different but same style stairs

 The stairs of the underground building are built and diversified through a pillar.

 The stairs in the above-ground building are built by a single module.

 Because it is made up of one kind of unit, it can make each stair produce different shape, thus ensuring diversity.

And modified the structure of each wall, so that the whole building on the ground to produce more sense of space.