Various local government agencies such as LTA, URA, and HDB have released a treasure trove of open data in recent years. In particular, open geodata has been used to generate a number of cool map visualisations, such as a live taxi heatmap that went viral in Singapore. The Python package Folium makes it easy to create map visualisations from open location data. I'll talk about how data from various sources can be mashed up to derive insights such as which MRT stations are the most expensive to live next to.