[[Open Infrastructure Map]] is absolutely fascinating. Check out all the power stations, turbines, electricity lines, gas, oil, water pipelines, etc are near you. Built on top of [[Open Street Map]] data (what an amazing project OSM is).
Equally fascinating is [[OSM Landuse Landcover]]. Dead interesting to compare urban areas, agriculture and wilderness. No surprise that near me there is a ton of pasture grazing and crop farming, a bit of urban sprawl, and a depressingly small amount of woodland and forest.