The blog post discusses a method for visualizing geo-referenced data using a custom map in Kibana, demonstrated with data from Elastic{ON} 2017. The process involves using tools like Inkscape, QGIS, and GeoServer to create a vector-based map that can effectively handle different zoom levels. The authors describe converting an SVG or PDF of the Elastic{ON} floor plan into shapefiles, which are then imported into GeoServer to create a layered tile map. This tile map is used to display wireless network usage and sentiment data collected from the event, but the approach can be adapted for other geo-enriched metrics, such as plotting server metrics over data center floor plans. The article highlights the importance of using vector representations to maintain image quality at various zoom levels and provides guidance on configuring Kibana to display the custom map.