This case study, a collaboration between EPFL SubLab (Lausanne) and Ewha ADSLab (Seoul), developed as an academic contribution to the 2017 Seoul Biennale of Architecture and Urbanism, is a powerful toolkit for any metropolis facing the challenge of rethinking obsolete, abandoned, or underutilised subterranean facilities.

It focuses on a 2.7-kilometre-long underground gallery located beneath the Euljiro, an avenue running through central Seoul. For ten days, students and professors from both schools discussed and debated the topic of preserving and reinventing an existing underground infrastructure, culminating in the 28 experiments in this book.

This case study, a collaboration between EPFL SubLab (Lausanne) and Ewha ADSLab (Seoul), developed as an academic contribution to the 2017 Seoul Biennale of Architecture and Urbanism, is a powerful toolkit for any metropolis facing the challenge of rethinking obsolete, abandoned, or underutilised subterranean facilities.

It focuses on a 2.7-kilometre-long underground gallery located beneath the Euljiro, an avenue running through central Seoul. For ten days, students and professors from both schools discussed and debated the topic of preserving and reinventing an existing underground infrastructure, culminating in the 28 experiments in this book.