You enter by clicking the double arrow on the ground (move your mouse around the image if you don't see it). Should look like this: http://i.imgur.com/mrl11c8.jpg
I'm told it doesn't work on the new Maps beta, so if you're on that you'll have to opt out to see.
I can confirm it doesn't work on the new maps beta - that's what had me confused. Incognito mode worked a charm though. Great easter egg and thanks for the help viewing it
Is it just me, or were other people cursing the StreetView interface. It seems to be "sticky" exactly when it would be most annoying. The number of times I unintentionally moved or zoomed was over 50% of the number of times I intentionally moved or zoomed.
This seems to be a pattern with Google interfaces. I've gone into the "flyover perspective" mode 10 times as often unintentionally as I have intentionally. The reason for this is that two finger pinch-zoom usually lets you pan as a side effect. Google Maps has hijacked this to signal the perspective thing. This is horrendous, because the ability to zoom and pan is really useful.
Awww... they missed a great opportunity for fun gimmicks, like putting people in different Doctor costumes facing away from the car at street level, maybe running towards some unknown fate? (Or a chip shop)
If you back up a step, you see a woman looking at the box, wondering wtf it's doing there :) And if you zoom out and re-position the man up the street and drive back down, it's a completely different set of images! Weird
https://www.google.com/maps?ll=51.466414,-0.151749&spn=0.300...