For over 150 years, Cambridge railway station was basically just one long platform (the third longest through-platform in England, according to Wikipedia). But it recently acquired a second platform, together with a bridge to access it. My train from London today stopped at the new platform.
When it first appeared in 1845 the station was way out in the countryside — the result of campaigning by the University to keep it away from the city centre, on the grounds that it would bring in ambitious whores from London, and/or enable students to visit same in the metropolis. Sadly, the station no longer serves such agreeable purposes and is now just a terminus for jaded commuters and academics like me going to and from meetings in London.