Indeed https://github.com/potree/potree has a bit awkward navigation, but there are quite a few nice lidar datasets available to explore with it, like the scan of the Matterhorn. I once used it to explore a dataset made by a photogrammetry drone, was quite nice.
The entire country of the Netherlands is also available here: http://ahn2.pointclouds.nl/ There is no rgb information, only elevation. But you can make out individual power powerlines, the scan resolution is really high.
The entire country of the Netherlands is also available here: http://ahn2.pointclouds.nl/ There is no rgb information, only elevation. But you can make out individual power powerlines, the scan resolution is really high.