Lost Mayan city found in Mexico jungle by accident
The city is the size of Edinburgh and among the largest Mayan sites in ancient Latin America.
www.bbc.com
Mr Auld-Thomas and his colleagues named the city Valeriana after a nearby lagoon.
Valerian (Valeriana officinalis, Caprifoliaceae) is a perennial flowering plant native to Europe and Asia.Valerian is also an herb you can buy IIRC