My First Leaflet Map

Create a leaflet map object.

library(leaflet)
## Warning: package 'leaflet' was built under R version 4.0.2
map <- leaflet() %>% addTiles()

Create a marker with a picture of IIT Delhi Main Building and a link to its homepage.

IITDIcon <- makeIcon(
   iconUrl = "http://chemistry.iitd.ac.in/images/IITD-mainbuilding.jpg",
   iconWidth = 30*408/255, iconHeight = 30,
   iconAnchorX = 30*408/255/2, iconAnchorY = 30/2
)

Add the marker to the map and display the map.

IITDPopup <- c("<a href= 'http://www.iitd.ac.in/' >IIT Delhi Main Building<br><img src='http://chemistry.iitd.ac.in/images/IITD-mainbuilding.jpg' width='210' height='132'  alt='Foto Corps de Logis' title='Foto Corps de Logi'></a>")
map %>%
   addTiles() %>%
   addMarkers(lat=28.543680, lng=77.198692, popup = IITDPopup)