Details of how it was built - in a country largely closed to the outside world - are shrouded in secrecy.
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Taylor triumphs over Serrano in trilogy
Ireland's Katie Taylor beats Amanda Serrano for the third time in their epic trilogy, winning their bout at New York's Madison Square Garden.
Heatwave set to peak as temperatures soar over 30C
Scotland and Northern Ireland could see their hottest days of the year, while heat health alerts are in place for many.
Al Fayed-owned Mayfair penthouse has 'leaky roofs and noisy lifts'
An exclusive Park Lane address owned by the Fayed family is at the centre of an eight-year dispute.
Gaza ceasefire talks on verge of collapse, Palestinian officials say
Senior Palestinian officials accuse Israel of deliberately stalling the negotiations in Qatar during the prime minister's US visit.
'Splash and burn' and 'Tax time bomb'
The third heatwave engulfing the UK features prominently on the front pages of Saturday's papers.
Why cockpit audio deepens the mystery of Air India crash
Fuel cut-off switches flipped seconds after takeoff in Air India crash, preliminary report finds.
The 10-year-old sleeper hit that has more plays than any Taylor Swift song
Lord Huron's The Night We Met has become a sleeper hit with more streams than any Taylor Swift song.
'Sour taste'. Jellycat pulls supply leaving independent shop owners confused
Jellycat has stopped supplying its plush toys to around 100 independent stores in the UK.
'They were just kids': Mother mourns sons killed in Israeli strike while waiting for aid
Two of Iman al-Nouri's five sons were killed outside a clinic in Deir al-Balah on Thursday, while a third was seriously wounded.
Inside King Charles's fiery gathering that shone a light on his beliefs
The King's philosophy of harmony with nature was on display at the Highgrove summit.
A bridge too far? Prague railway project draws criticism
The 123-year-old Vysehrad railway bridge is set to be replaced but conservationists say it should stay.
Intense Med Sea heatwave raises fears for marine life
Sea temperatures around places like Majorca exceeded 30C earlier this month, far above average.
Trump surveys damage in Texas as search continues for 160 missing
Efforts to find and identify the scores of dead and missing continue into a second week.
Faisal Islam: We are heading for significant tax rises
Repeatedly borrowing more is not a long-term solution to rising day-to-day spending pressures.
'It'll be a chess match' - where Wimbledon final will be won
In her latest BBC Sport column at Wimbledon, Naomi Broady analyses where Saturday's final between Amanda Anisimova and Iga Swiatek will be won and lost.
BBC faces dilemma over new series of MasterChef
This year's series was reportedly filmed before co-host Gregg Wallace faced misconduct allegations.
Bonfire lit despite concerns about asbestos
A bonfire in south Belfast has prompted fears over asbestos and power supplies to two major hospitals.
US has resumed military supplies to Ukraine, Zelensky says
It comes after US President Donald Trump announced a new deal to supply air defence systems via Nato.
US has resumed military supplies to Ukraine, Zelensky says
It comes after US President Donald Trump announced a new deal to supply air defence systems via Nato.
Watch: Role of plane fuel switches explained
A preliminary report investigating the Air India crash finds both fuel switches were moved to the off position.