TBZ Turm, Wooden tower at Technische Berufsschule, Zürich, Switzerland

The TBZ Turm is a 13-metre red wooden tower on the roof of the Technische Berufsschule Zürich, overlooking the school's break area. Designed by Daniel Roth with architect Alexander Kohm, it follows the form of a hyperboloid structure by Vladimir Shukhov from 1896. The tower combines two architectural styles and two eras.

The structure was created in the early 2000s through a collaboration between the school and German artist Daniel Roth, who drew ideas from a historic Soviet engineering design. The project was completed in 2005 and has since become a defining feature of the school campus.

The tower has become part of how students perceive their school, blending craft and design in a way that marks the campus visually. Its red wooden form stands out among typical school buildings and shapes how people experience the site.

The tower is not publicly accessible; since 2023 the key can be borrowed from the school library as a deposit using a student ID. The tower stood open for about eight years after construction before being permanently closed. It stands on the roof above the schoolyard of the Technische Berufsschule Zürich.

The tower stayed open for about eight years after it was built, then was closed permanently because pupils broke school rules inside it. Since 2023 the key can be borrowed from the school library against a pupil ID, held as a deposit.