Coinciding with the WTM Travel and Trade Fair in London, a special advertising campaign was launched by Sri Lanka Tourism in central London covering 25 underground stations for three months. 

 

 

 

 

 

 

 

 

The campaign started off on 29 October and will go on until 29 January 2015, running parallel with the WTM Travel Fair in the UK.
The Underground advertising campaign will be featured in main stations in central London such as Green Park, Covent Garden, Holborn, Bank, Leicester Square, Oxford Circus, Piccardilly Circus and Tottenham Court etc. Images of beaches, elephants, leopards, whales and dolphins in Sri Lanka will be depicted in this campaign targeting potential travellers in the UK.

Source : http://www.ft.lk/2014/11/05/sri-lanka-tourism-launches-advertising-campaign-in-london-underground/