Lighthouse

A lighthouse was a structure built close to water to aid ships by guiding them with a beam of light. The first lighthouse built on Earth was in Alexandria. (DWM: Voyager)

In the 1900s, one of the Rutan Host took over the Fang Rock lighthouse, but was defeated by the Fourth Doctor. (DW: Horror of Fang Rock)

In the 1970s, Professor Tansbury conducted experiments in a disused lighthouse off the coast of Porthferiot, Cornwall, resulting in the creation of a giant lizard, the growth of which destroyed the lighthouse. (TVC: The Tansbury Experiment)

In 2006, the Cynrogs used the Black Island lighthouse as their base while trying to recreate Balor. (NSA: The Nightmare of Black Island)

Bev Tarrant and Adrian Wall investigated a strange lighthouse while searching for Clarissa Jones. (BFBS: Hiding Places)

The TARDIS belonging to Astrolabus took the form of a lighthouse. (DWM: Voyager)