This train station is London's finest, and there is a large chance that you'll travel into or out of London through it. One of the most famous spots inside of the Station is not a historical one, but a literary one...you may have guessed it, but we're talking about Platform 9 3/4 from Harry Potter. You can tell your friends you visited Hogwarts and show them photographic evidence, courtesy of the photo opportunity: a trolley stuck into the wall under the Platform 9 3/4 plaque.