On a recent visit to Madrid, we decided to venture beyond our usual haunts and walked through Parque de El Retiro and found ourselves at Madrid's main train station Estación de Madrid Atocha. The exterior of this grand old building is impressive. However, it is once you step inside that you appreciate its state of preservation.
The incredible transformation of the late 19th Century railway station in Madrid - the central interior has been converted in to a tropical garden, complete with turtle pond