Tunnel walkway from Initiation Well in Quinta da Regaleira in Sintra, Portugal, Europe

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Size: 5050px × 7090px
Location: Sintra, Portugal, Europe
Photo credit: © Michael Marquand / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ancient, cave, cavern, da, dark, geology, initiation, light, mountain, natural, nature, portugal, quinta, regaleira, rock, rocks, sintra, stalactite, stalagmite, stone, tourism, travel, tunnel, underground, walkway, wall