Tangamix

Generally opens early (5:00 AM) and remains open late (10:30 PM), though it is often closed on Monday afternoons for maintenance.

I'm assuming you're referring to a Tangamix paper, which is likely related to Tangram, a classic puzzle game originating from China. tangamix

At the heart of the Tangamix phenomenon is the work of performers like (also known as "El Cumbias") and Sonido La Fuga . Generally opens early (5:00 AM) and remains open

An interactive museum focused on the connection between technology and art. which is likely related to Tangram

Otherwise, the most likely public-domain answer is that you are looking for information on the Tanegashima matchlock gun .