Blue Enigma

Blue Enigma. The Eulach river in Winterthur mysteriously turned blue, leaving experts baffled as to the cause, with natural reasons and construction work being…

Location: Eulach river, Winterthur, Switzerland

Year:

Category: weird

The Eulach river in Winterthur mysteriously turned blue, leaving experts baffled as to the cause, with natural reasons and construction work being ruled out.

Source: Eulach: Blaue Verfärbung sorgt für Rätsel in Winterthur

Blue Enigma — Winterthur, Canton of Zurich

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