Wayfinder3D, created by Will Geary, compares travel routes based on transit mode using estimate route info from the GoogleMaps API.
https://cesiumjs.org/demos/Wayfinder3D/
OpenSfM, created by Matthias Adorjan and Michael Wimmer at TU Wien, allows users to create, view, and share structure-from-motion photogrammetry models of landmarks in an open, shared database: