Step 1, organize the parts...

Step 2, construct each floor...

Step 3, boom -- several hours later you're done!

Note the diagonal alley

Slightly dusty dome

Exterior closeup

Courtyard with a cat statue

Furniture shop exterior

Furniture shop interior

Musical instrument shop interior

Musical instrument shop upstairs

Furniture store workshop upstairs

Rear view with carrier pigeon mailbox for furniture orders

Pigeon coop on the roof

A rat stole a pipe...

...and caused a leak under the alleyway

Third floor apartment

Half bath in the apartment

First floor overhead view

Second floor overhead view

Third floor overhead view