Mirabel and Natalie from LUCA (Luxembourg Center for Architecture) joined the Breakfast Show to discuss Lisières Vivantes (Living Thresholds), a thought-provoking new exhibition examining how humans, animals, and plants coexist in urban environments.

Now open at LUCA, the exhibition invites visitors to reimagine cityscapes not solely as spaces for human activity, but as dynamic ecosystems shared with non-human life. Through projects from the fields of architecture, urban planning and the visual arts, Lisières Vivantes explores how built environments can support biodiversity and promote coexistence.

The exhibition highlights urban thresholds, like walls, gardens, and green belts, as vital zones of interaction between human and non-human species. One example focuses on the city’s stone fortification walls, which have become vertical gardens, sheltering insects, birds and plant life. These intersections, Natalie explained, represent mutual territory that challenge the traditional separation between the built and the natural world.

As part of LUCA’s ongoing commitment to addressing climate and environmental issues through design, the exhibition also ties into the larger LUGA 2025 programme and raises questions about how the green spaces in Luxembourg City serve its wider ecosystem. The curators emphasise not just the quantity of green space, but its connectivity, highlighting the importance of corridors that allow species to move between habitats without interruption.