Great Structures - Tree tunnels: Natural canopies over country lanes

A tree tunnel forms when trees on opposite sides of a road or pathway grow together, creating a continuous overhead canopy that resembles an enclosed passageway. These visual spectacles occur in deliberately planned, tree-lined avenues as well as in rural settings where trees grow at random along both verges. The striking aesthetic of tree tunnels has inspired prominent artists, serving as a dedicated theme for British painter David Hockney in a major 2012 exhibition and recurring in Nick Schlee's landscape paintings.

Source: Wikipedia