How do I embed an internal routes/show page on to an external website?

Hey all, 

I've seen websites where you place some Javascript code - and they are able to display information from another website on their website. Wondering how I can do the same? I have a www.xyz.com/maps/id/show page which displays a map of a user with some other details. Any idea how I can embed this same page on an external website www.abc.com/map which shows the same map?

Thanks.

Arjun

Thanks will try over the weekend and get back if any doubts.