Varna, Bulgaria, May 04, 2019. The yellow building of the Bulgarian National Institute of Meteorology and Hydrology, a branch office in Varna. Side view.

Varna, Bulgaria, May 04, 2019. The yellow building of the Bulgarian National Institute of Meteorology and Hydrology, a branch office in Varna. Side view.

Varna, Bulgaria, May 04, 2019. The yellow building of the Bulgarian National Institute of Meteorology and Hydrology, a branch office in Varna. Side view.