There are hundreds of ways to end the sentence 'Only in Cambodia…..'. So how about this one? Only in Cambodia can you get approval from an active construction site to temporarily set up a climbing wall.
There were three activities after completion of the site. The first was to climb up the wall similar to an indoor climbing gym except you're outside and climbing up 30 meters (so not really the same at all). The second was to weave through the construction crew (actively working) and take a view from the roof of the tower. The third was to rappel down the side of the building without catching your knee on a rusty nail.