https://www.ncbi.nlm.nih.gov/pubmed/26690210 - doses of 1885, 2802 and 6235 IU per day are required for normal weight, overweight and obese individuals respectively to achieve natural 25(OH)D concentrations (defined as 58 to 171 nmol/L)
and there is a Skype logo too http://goo.gl/jOk19o and a happy face http://goo.gl/Z4AHB6
It looks like a user had enough reputation to add things without review.
This is a crowdsourcing error in Google Maps. The triangle was added from MapMaker. It was deleted ten days ago, but the image was not updated yet ( http://goo.gl/P2rpG2 ).