Lighthouse

A lighthouse is a tower which emits light to aid navigators at sea.

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)

Astrolabus's TARDIS took the form of a lighthouse. (DWM: Voyager)