2 TBMs are boring Athens' metro line 4 which will be ready in 2029.
...The new line will consist of 15 stations on a U-shaped underground route of 13 kilometers of tunnels....
https://greekcitytimes.com/2024/05/14/new-athens-metro-line-to-alleviate-heavy-urban-traffic/
cover tunnel photo by: Matt Brown from London, England / CC BY
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