Suspended 60 feet above ground in the majestic red wood forest of Bonny Doon, California, this stunning pinecone-shaped treehouse was carefully crafted to let guests reconnect with nature. Designed by builder Dustin Fieder of O2 Treehouse, the Pinecone, which is listed on Airbnb, is clad in multiple diamond-shaped panels carefully layered to create the unique shape. The all-transparent facade provides guests with stunning 360-degree views of the dense tree canopy. … Guests to the treehouse can access the gorgeous tiny treehouse via a 30 – 60 degree alternating step access ladder. However, the steepness and height of the ladder is not for the faint of heart and there is a harness and ascension safety system for those who would like to take the safer way up.