He's now in a British jail, and though UK authorities have yet to confirm the precise place of his detention, multiple reports suggest that he's being held in what's dubbed "Britain's Guantanamo Bay" — or Belmarsh Prison, given its reputation as a holding facility for terrorists and high profile criminals. 

Crucially, the United Nations human rights office has now weighed in, on Friday urging that the UK government holds a fair trial as a US extradition request hangs over the proceedings. 

U.N. human rights spokeswoman Ravina Shamdasani told a Geneva news briefing: "We expect all the relevant authorities to ensure Mr. Assange's right to a fair trial is upheld by authorities, including in any extradition proceedings that may take place," according to Reuters.