Gotthard Base Tunnel derailed wagon
photograph of Swiss Federal Railway company SBB media release at https://news.sbb.ch/medien/artikel/124073/bahnverkehr-im-gotthard-basistunnel-unterbrochen
From Wikicommons uploaded by Cooper - Geländerelief: NASA WorldWind 1.3 / Zeichnung: Cooper, Public Domain, https://commons.wikimedia.org/w/index.php?curid=3844544