The 3D visualisations are powered by Cesium. Here are some quick instructions on how to use explore the globe in Cesium:

Left click and drag - Rotates the camera around the globe in 3D and translates the camera over the map surface in 2D and Columbus view.
Right click and drag - Zooms the camera in and out.
Middle wheel scrolling - Also zooms the camera in and out.
Middle click and drag - Rotates the camera around the point on the surface of the globe.

If you are using a trackpad on a laptop without a mouse, holding the control key acts the same as the middle mouse button

For general information on using how to use Cesium, and browser compatibility, click here