Stockholm metro deserted beauty caught on camera: [
www.bbc.com]
Mail Rail: The hidden trains under London's streets: [
www.bbc.com]
The wild abandoned railway in the centre of Paris: [
www.bbc.com]
On board a real-life 'ghost train': [
www.bbc.com]
The man who can taste the Tube map: [
www.bbc.com]