This web page using R Markdown that features a map created with Leaflet.
Leaflet is one of the most popular Javascript libraries for creating interactive maps. The leaflet R package allows you to create your own leaflet maps without needing to know any Javascript!
Take a look at the map.
if(!require(leaflet))install.packages("leaflet")
## Loading required package: leaflet
library(leaflet)
leaflet() %>%
addTiles() %>%
addMarkers(lat=-29.830153, lng=-51.410769,
popup="Cristian Neuhaus's Office")