![Spectrum, chromatic crossing: what is this installation suspended in a tunnel in Paris? - Sortiraparis.com Spectrum, chromatic crossing: what is this installation suspended in a tunnel in Paris? - Sortiraparis.com](https://cdn.sortiraparis.com/images/80/1665/865890-spectrum-traversee-chromatique-quelle-est-cette-oeuvre-suspendue-dans-un-tunnel-a-paris.jpg)
Spectrum, chromatic crossing: what is this installation suspended in a tunnel in Paris? - Sortiraparis.com
![Lower Thames Crossing: Shortlisted tunnel builders to engage in 'dialogue' | Ground Engineering (GE) Lower Thames Crossing: Shortlisted tunnel builders to engage in 'dialogue' | Ground Engineering (GE)](https://cdn.ca.emap.com/wp-content/uploads/sites/13/2022/03/Lower-Thames-Crossing.jpg)
Lower Thames Crossing: Shortlisted tunnel builders to engage in 'dialogue' | Ground Engineering (GE)
![İstanbul Strait Road Tube Tunnel Crossing Project (Eurasia Tunnel) (ru) - Highways, Motorways and Bridges (ru) - İstanbul Strait Road Tube Tunnel Crossing Project (Eurasia Tunnel) (ru) - Highways, Motorways and Bridges (ru) -](https://www.suyapi.com.tr/upload/Node/20975/xpics/583_AVRSYA_01.jpg)
İstanbul Strait Road Tube Tunnel Crossing Project (Eurasia Tunnel) (ru) - Highways, Motorways and Bridges (ru) -
![Marmaray Project – Marmaray Bosphorus Immersed Tube Tunnel Crossing For Metro – Nurol Construction and Trading Co. Inc. Marmaray Project – Marmaray Bosphorus Immersed Tube Tunnel Crossing For Metro – Nurol Construction and Trading Co. Inc.](https://www.nurolinsaat.com.tr/wp-content/uploads/2017/05/Marmaray-%C4%B0stanbul-Metro-Sistemi-Bo%C4%9Faz-T%C3%BCp-Ge%C3%A7i%C5%9F-Projesi-2-1.jpg)