Every lighthouse in the world | mapped.earth
mapped.earth
Every charted navigational light on the planet on a night globe you can turn: each one flashing or sweeping at the rhythm printed on the chart. Zoom to a coast, hover a light for its name.

This site is cool in its own right. But as well as that, if you zoom in on somewhere relatively small like Indonesia or Malaysia, it looks like animated searchlights around an enemy encampment at night.