There is a lot of noise right now around this "reconstruction". A lot of questions, "How it was" and "how it became." See for yourself.
How to create a virtual 3D tour? Step-by-step instruction
The order is as follows: 1) upload to the site spherical panoramas from which you plan to create a virtual tour; 2) from the list of uploaded panoramas add each panorama to the virtual tour (Add to 3D tour link); 3) open the created virtual tour, edit the panorama order, select the main panorama, set transition points (tunnels).Learn more