Australia
The Gloucester Tree is a 61-metre high Karri tree originally used as a bushfire lookout in the 1940s. If you have a head for heights you can now climb up 153 spiralling metal rungs stuck into the tree trunk to a platform at the top with spectacular 360-degree views of the forest.
Three kilometres from the centre of Pemberton in Gloucester National Park, in the southwest of Western Australia.
www.calm.wa.gov.au/national_parks/previous_parks_month/gloucester.html
Google map: tinyurl.com/n3uny7
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