No, in Britain there are at least 3 stations with a platform 0, Haymarket, Stockport and Cardiff Central. If you include stations in other countries, Philadelphia's Suburban Station in the U.S. has a platform 0 as well. It's a stub track that did not fit into the numbering scheme that was adopted when tracks were realigned as part of a project to connect the city's two major terminals.
Haymarket railway station was created in 1842.
The bus journey from Edinburgh Haymarket station to Edinburgh Zoo will take approximately 15 minutes. You can take Lothian Buses routes 12, 26 or 31 from Haymarket to Edinburgh Zoo.
Edinburgh Waverley railway station was created in 1846.
Edinburgh Park railway station was created in 2003.
St Leonards - Edinburgh - railway station ended in 1846.
St Leonards - Edinburgh - railway station was created in 1860.
Edinburgh Scotland Street railway station was created in 1842.
Edinburgh Scotland Street railway station ended in 1868.
Edinburgh Princes Street railway station was created in 1870.
Edinburgh Princes Street railway station ended in 1965.
Delec Platform railway station was created in 1957.
Delec Platform railway station ended in 1996.