1. A method for creating point of interest indices for a map with a plurality of spatial levels, the method comprising the following steps performed by one or more processors: receiving documents from one or more computerized data systems, the documents corresponding to one or more points of interest (POIs) and a location of the one or more POIs; determining at least one spatial level for a footprint of the one or more POIs; defining at least one POI footprint based on a spatial identifier for each POI at each determined spatial level; and creating at least one index based on at least one defined POI footprint, each index comprising at least one POI spatial identifier corresponding to a determined spatial level, wherein the at least one spatial level is determined based on a significance of at least one document, the significance of the at least one document reflecting the type of POIs associated with the at least one document, and wherein the number of determined spatial levels for each document is based on the respective significance of each document.