The Bayer Cross, one of the best-known trademarks in the world, is given a good clean at Cologne-Bonn airport.

The Bayer Cross in Leverkusen at night

The Chemical Park in Leverkusen is both the headquarters of the Bayer Group and a production site.

The Bayer Cross in Berlin occupies a prominent position atop the high-rise building at Hardenbergplatz between the Kaiser Wilhelm Memorial Church, Kudamm, Zoo Station and Europacenter.

The Bayer Cross at night