Yen Brothers' headquarters

The Yen Brothers' headquarters appear in the TMNT Adventure comic issue The Good, the Bad and the Tattooed, and are located in Kyoto, Japan.

When the Yen Brothers kidnap Tai San's dog Inky, the dog is taken there. At the end,, , Ninjara and the Warrior Dragon climb into the building, fight the Yen Brothers and free the dog.