The Adventureland Treehouse has been a nice evolution of the classic attraction in Adventureland that started life as the Swiss Family Treehouse back in 1962.  After a run from 1999-2021 as Tarzan's Treehouse, it was closed and refurbished over a couple of years before opening in its current iteration three years ago.  Generally, from afar, it doesn't look much different from before--bar the noticeable missing separate tree trunk stair that previously split the Adventureland pathway and was removed to improve traffic flow as part of the refurbishment.  The scenes inside, however, harken back to more of a the Swiss Family vibe of a resourceful clan interested in nature and science and cleverly able to create some cozy spaces that reflect their varied interests.  It's nice to see that even six decades later, this classic walkthrough attraction can still offer lovely views and fun scenes to those who make the trek up and down this arboreal abode!