North Reef Light is an active lighthouse located on North Reef, a 5.6 square kilometres planar reef, about 120 kilometres (75 mi) northeast of Gladstone, Queensland, Australia. The lighthouse was constructed on a migratory patch of sand inside a fringing coral reef, which over the years disappeared and reappeared, as sand was washed away and accumulated,...
The Pilsum Lighthouse (German: Pilsumer Leuchtturm) was built in 1889 in order to provide a beacon for theEmshörn channel on Germany's North Sea coast. It is located on a dyke near the village of Pilsum in the municipality of Krummhörn.