A stone marking the summit of the Brocken Mountain is covered by snow and ice on February 12, 2019, in Schierke, Germany. (Photos: VCG)

The meteorological observatory on the Brocken Mountain is covered by snow and ice on February 12, 2019, in Schierke, Germany.

Workers clear snow from the "Brockenbahnhof" Train Station with the Harzer Schmalspurbahn narrow gauge train on February 12, 2019, in Schierke, Germany.

Snowflakes fall on catkins in a garden in Marktoberdorf, Germany, on February 12, 2019.