How to create a similar map?

Question

JavaScript

Hello! Guys, we need help!
Has anyone had to make similar maps with similar functionality goo.gl/uGXjtK ? Tell me, in which direction to dig? How to apply your card?
Please poke your nose into the tutorial or something else.

Answer 1

Good example!
There is such a library ( leaflet ), you can do it with its help.
PS here is some more work from the creators of your example

Answer 2

example for google econym.org.uk/gmap/custommap.htm

Answer 3

Is there an example for such a map?