Distances use the haversine formula (Earth mean radius 6,371 km). Arrows show the initial great-circle bearing — the true direction you'd start walking. Your custom places and settings are saved in this browser.
The shortest path on a sphere is a great circle. On this flat (equirectangular) chart those straight-on-Earth routes appear curved — that's projection distortion, not the route bending. Arrows point along the route toward each destination. Hover to highlight.