text: 
  https://osmbuildings.org/?lat=51.70877&lon=8.76457&zoom=17.0&tilt=30
  https://demo.f4map.com/#lat=51.7082375&lon=8.7646376&zoom=18
  http://maps.osm2world.org/?zoom=18&lat=51.88767&lon=8.31869&layers=B0TTFF
  
  Flo