most (not all, some contributions are QTVR-only due to historical reasons)
many, but depends on photographer's choice of file upload (newer event = more likely to work) and your device's capabilities. You may experience slow playback, distorted images or unexpected browser quitting if there is only limited memory/GPU power available.
The Temple of Sagrada Família shows an integral concept of architecture, where plastics, shapes, nature, symbolism and color constitute a unique and genuine mosaic. And this mosaic will remind the name of his master, Gaudí, from here to eternity.
Latitude: 41° 24' 11.13" N
Longitude: 2° 10' 24.82" E
Precision is: High. Pinpoints the exact spot.