That picture...
Jiminy Christmas!
That looks like an avalanche about to happen.
And is that photo-distortion, or are buildings built on the downslope at the top?
It’s a distortion.
The bold blue double arrow is where the funicular runs.
They are. Infinitiy pools with fabulous views of the caldera and the sunsets etc. Seriously, check out the booking information for the nicest tourist hotels on Santorini, you may want to sit down first. The on-season rates are, well, the Greeks owe the EU a lot of money, so...