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.
About 50 years ago a few crocuses appeared on this spot in that, at that time recently-developed, living quarter. Over time these crocuses became almost a weed, blooming in March in countless numbers. The interesting fact is that only two colors can be observed, which I consider as a lack of diversity.
Latitude: 53° 4' 27.98" N
Longitude: 8° 52' 36.08" E Elevation: 8m
Precision is: High. Pinpoints the exact spot.