Wisteria flower tunnel in JapanWisteria flower tunnel in Japan. (Photo: dk tazunoki/Shutterstock)

Tree tunnels are perfect examples of how nature can be shaped over many years by humans and other external influences. When paths and roads are carved into the ground, nearby trees bend outward into the new patch of light to receive more energy for photosynthesis. This process continues until the tree branches on either side completely overlap, forming a thick ceiling over the pathway beneath.

In the case of the more flowery passageways like the Wisteria Tunnel (above) found at the Kawachi Fuji Gardens in Kitakyushu, Japan, gardeners strategically place the easily trained, hanging flowers along a curved trellis.

Continue scrolling for more examples of these exquisite canopies, which can be found around the world.

St. Louis, Oregon

Bright red tree tunnel in Oregon (Photo: Ian Sane/Flickr)

Botany Bay Plantation, Edisto Island, S.C.

Tree tunnel in Edisto, S.C. (Photo: Dave Allen Photography/Shutterstock)

Klevan, Ukraine

Tunnel of Love in Ukraine(Photo: Nataliia Budianska/Shutterstock)

Nakameguro, Tokyo, Japan

White cherry blossom tunnel over canal(Photo: violetblue/Shutterstock)

Gunung Irau, Pahang, Malaysia

Mangrove tunnel in Malaysia(Photo: CHAIWATPHOTOS/Shutterstock)

Point Reyes National Seashore, California

Cypress tunnel in Point Reyes, CaliforniaPhoto: (CatonPhoto/Shutterstock)

Nagatoro, Saitama, Japan

Pink cherry blossom tunnelPhoto: Tedd Okano/Flickr

Drenthe, Holland

Autumn tree tunnel(Photo: Sander van der Werf/Shutterstock)

Catie Leary ( @catieleary ) writes about science, travel, animals and the arts.

Take a stroll beneath these 9 natural tree tunnels
These exquisitely canopied tunnels were shaped over many years by humans and other external influences.