Belgium

Belgium is a nation in western Europe. It lies immediately to the north of France.

The Tenth Doctor has visited Belgium on several occasions:
 * In the year 800, to rescue a kidnapped Charlemagne from Momus, an insane computer. (DW: The Unicorn and the Wasp, WC: The Lonely Computer)
 * In 1914, with Rose Tyler. (DWAM: Warfreekz!)

Minor references

 * The collision of the Tenth and Fifth Doctors' TARDISes threatened to blow a hole in the space-time continuum the exact size of Belgium, a somewhat anticlimactic apocalypse. (DW:Time Crash)
 * In 2001, former companions Anji Kapoor and Dave Young took a holiday in Brussels, Belgium. (EDA: Escape Velocity)
 * The Doctor's psychic paper convinced an Alexandra Tower security guard that he (the Doctor) was the king of Belgium. (DW: The Idiot's Lantern)
 * Agatha Christie made her fictional detective Poirot a Belgian. (DW: The Unicorn and the Wasp)
 * Circa 2007, the sale of Dogon eyes had some popularity by collectors of alien artefacts, especially in Belgium for some unknown reason. (TW: Random Shoes)