Tour poster: The Green Rust: Nature's Toxic Triumph at Kokerei Hansa
Red Thread OriginalDortmund
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Self-guided audio tour

Dortmund

The Green Rust Nature's Toxic Triumph at Kokerei Hansa

Spirituality, Myth & NatureHistory & Memory
Distance
2.8 km
Duration
96 min
Route
6 stops

Step into a post-industrial wasteland where nature is rewriting the rules of survival. On this immersive journey through the Kokerei Hansa, you will witness a slow, silent, and slightly ominous battle.

Anna Gallagher
Your guide Anna Gallagher Spirituality, Myth & Nature
Audio sample

What awaits you on this Red Thread tour

Step into a post-industrial wasteland where nature is rewriting the rules of survival. On this immersive journey through the Kokerei Hansa, you will witness a slow, silent, and slightly ominous battle. Discover how pioneer plants, mutant fungi, and engineered landscapes are devouring a century of heavy industry, toxic coal dust, and brutalist architecture. This is not a story of pristine wilderness; it is a gritty, triumphant tale of biological adaptation in the face of extreme contamination.

Your in-app experience

This is how the Red Thread app brings your tour to life.

Red Thread guides you through the city's stories that you won't find in any guidebook. Authentically and compellingly told by our experts and locals.

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01

Home

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Search for tours directly

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Redeem in the app
03

Redeem in the app

Redeem purchased tours or City Passes in the app using a voucher code or QR code.

Start well prepared
04

Start well prepared

Explore the route, stops, and many additional features for your experience.

Listen where it happened
05

Listen where it happened

Hear the stories where they happened.

Ask your guide
06

Ask your guide

Get extra context, deeper details, or useful tips nearby.

Collect discoveries
07

Collect discoveries

Build your travel passport and explore fascinating insights.

Itinerary

1

TOUR START

Alte Waschkaue (Old Washhouse)

The historical entry point where workers scrubbed off toxic coal dust, now serving as the threshold into nature's own biological cleansing process.

Alte Waschkaue (Old Washhouse)

Image by Rainer Halama on Wikimedia Commons (CC BY-SA 4.0)

0.45 km • 7 min
2

STOP 2

Kompressorenhalle (Compressor Hall)

The massive former mechanical lung of the plant, where the silence of preserved machinery contrasts with the buzzing of colonizing insects.

Kompressorenhalle (Compressor Hall)

Image by Arnoldius on Wikimedia Commons (CC BY-SA 3.0)

0.07 km • 1 min
3

STOP 3

Löschturm (Quenching Tower)

The site of violent thermal cooling, which has left behind a highly specific, damp microclimate favoring rare, toxin-eating mosses and ferns.

Löschturm (Quenching Tower)

Image by Rainer Halama on Wikimedia Commons (CC BY-SA 4.0)

1.62 km • 25 min
4

STOP 4

Emscher Renaturierung (Emscher River Path)

The crossing of the Emscher river, once Europe's dirtiest open sewer, now the site of a multi-billion-euro ecological restoration project.

0.56 km • 9 min
5

STOP 5

Deusenberg Fuß (Base of Deusenberg)

The base of an entirely artificial mountain, built from WWII rubble and industrial waste, now sealed and seeded as a living experiment in engineered ecology.

Deusenberg Fuß (Base of Deusenberg)

Image by Matthias Nonnenmacher on Wikimedia Commons (CC BY-SA 4.0)

0.11 km • 2 min
6

END

Deusenberg Gipfel (Deusenberg Summit)

The panoramic conclusion, offering a sweeping view of the industrial ruins engulfed in green, symbolizing the permanent fusion of human history and ecological process.

Deusenberg Gipfel (Deusenberg Summit)

Image by Rainer Halama on Wikimedia Commons (CC BY-SA 4.0)

Where the tour takes place

Starting point and rough tour area – the exact route unfolds in the app.

Good to know

  • Ideal for Urban explorers, dark ecology enthusiasts, industrial history buffs, and lovers of brutalist architecture and botany.
  • Best time Late afternoon, when the fading light casts long shadows over the rusted pipes and the buzzing of insects is most pronounced.
  • Footwear Wear thick-soled, sturdy boots. You will be walking on uneven, industrial terrain and engineered soil.
  • Photography Bring a macro lens if you have one. The most fascinating battles between rust and lichen happen at the microscopic level.
  • Safety Stick strictly to the marked paths. The soil in uncleared areas still contains high levels of heavy metals and toxic residues.
  • Atmosphere Embrace the eerie silence. Take moments to just listen to the wind moving through the rusted steel structures.
  • Your voucher You can redeem your voucher for two years from purchase. Once redeemed, you have 14 days of access and can enjoy the tour as often as you like during that time.

Your guide

Anna Gallagher
Audio sample
0:000:00

Anna Gallagher

  • Spirituality, Myth & Nature
  • West Coast of Ireland

Researcher of religion and culture. Collects urban legends, rituals, and nature stories. Finds quiet, hidden places and makes their significance tangible.

Frequently asked questions

How do I get to the tour after buying?

You see your voucher code right after payment – and you also receive it at the email address you entered at checkout. Redeem that code in the Red Thread app; that's where the tour starts.

When does my access start?

Only when you redeem the code in the app, not at purchase. From redemption you have 14 days of access to the tour.

Do I need the Red Thread app?

Yes. The free Red Thread app turns your tour into a vivid experience: with audio, a map, and thoughtful prompts, it guides you from place to place in an engaging and entertaining way. It's available free for iOS and Android.

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