Date and time at the time of publishing of this document?

Sys.time()

## [1] "2017-04-24 17:03:59 IST"

Some countries that I have visited….

library(leaflet)

## Warning: package 'leaflet' was built under R version 3.3.3

df <- data.frame(lat= c(20.593684, 37.09024, 55.378051,-25.274398, 39.074208, -20.348404 ), 
                 lng = c(78.96288, -95.712891, -3.435973, 133.775136, 21.824312, 57.552152 ))
my_map <- df %>% leaflet() %>% addTiles() %>% addMarkers()
my_map