Geography
From Tardis Wiki, the free Doctor Who reference
Geography was a science concerning the study of land. River Song claimed she found it had wuite a bit of overlap with history. (AUDIO: An Unearthly Woman)
In 1963, Mr Grange taught geography at Coal Hill School. (PROSE: Time and Relative) River Song later taught geography to Susan Foreman's class. (AUDIO: An Unearthly Woman)
Flip Jackson's school did not allow her to take her geography GCSE exam. (AUDIO: Quicksilver)
New Byzantium's geography was similar to Earth's Byzantium. The Seventh Doctor, Ace and Bernice Summerfield visited the city in 2673. (PROSE: Shadowmind)