Page 1 Visualizing MapsPage 2 R Packages OpenStreetMapRgoogleMapsGGMapMapsPage 3 Heatmap Source:http://www.businessinsider.com/i-quant-ny-manhattan-subway-map-farthest-apartment-2014-10Page 4 OSM Tiles Source: http://blog.fellstat.com/?p=356Page 5 OSM - Nodes & Ways Source: http://journal.r-project.org/archive/2013-1/eugster-schlesinger.pdfPage 6 OSM Polygons Source: http://journal.r-project.org/archive/2013-1/eugster-schlesinger.pdfPage 7 OSM Navigation Source: http://journal.r-project.org/archive/2013-1/eugster-schlesinger.pdfPage 8 To Conclude... Visualizing Maps is more interesting than you think.