Thirty tech billionaires are trying to build a self-proclaimed crypto micronation called 'Liberland' on a muddy section of unclaimed land in the Danube River.The uninhabited marshland on the border of Serbia and Croatia was founded by Czech libertarian politician Vít Jedlička who claimed the territory in 2015.His vision was to create a nation which eradicates tax and government regulation and it has gained support from the likes of Chinese crypto billionaire Justin Sun.The group are using blockchain – effectively a secure digital ledger – to construct the first decentralised autonomous government and also the world's 'freest country'.Now, 11 years on 'The Free Republic of Liberland' has 200 registered companies but still lacks any proper infrastructure and is not recognised by any other nations.Those behind the project have therefore set up a permanent outpost across the river called 'Ark Village' which has shared rooms, kitchenettes and a meeting room.Investigative reporter Matt Shea gained rare access to the area for new documentary The Tech Billionaire Takeover which airs on BBC Two on Sunday at 9pm.Mr Shea is taken inside the Ark Village main building to have breakfast with members of the group including Mr Jedlička, whom he describes as 'Mr President'. Reporter Matt Shea arrives at Ark Village, a permanent outpost across the river from Liberland Mr Shea meets Czech libertarian politician Vít Jedlička who claimed the territory in 2015 Scenes in the BBC documentary from Ark Village, which has been set up next to Liberland Mr Shea looks around some of the accommodation at Ark Village, which is close to Liberland The Free Republic of Liberland is a self-proclaimed micronation on the island of Gornja Siga. Pictured: A team wave with the Liberland flag before heading to the island in 2016