The UK's largest haul of Anglo-Saxon treasure has been discovered buried beneath a field in Staffordshire, BBC reported.
Experts said the collection of 1,500 gold and silver pieces, which may date to the 7th Century, was unparalleled in size and worth at least £1m.
It has been declared treasure by South Staffordshire coroner Andrew Haigh, meaning it belongs to the Crown.
Terry Herbert, who found it on farmland using a metal detector, said it "was what metal detectorists dream of".
It may take more than a year for it to be valued.
The Staffordshire Hoard contains about 5kg of gold and 2.5kg of silver, making it far bigger than the Sutton Hoo discovery in 1939 when 1.5kg of Anglo-Saxon gold was found near Woodbridge in Suffolk.
Leslie Webster, former keeper at the British Museum's Department of Prehistory and Europe, said: "This is going to alter our perceptions of Anglo-Saxon England as radically, if not more so, as the Sutton Hoo discoveries.
"(It is) absolutely the equivalent of finding a new Lindisfarne Gospels or Book of Kells."
The Book of Kells and Lindisfarne Gospels are intricately illuminated manuscripts of the four New Testament Gospels dating from the 9th and 8th Centuries.
'Just unbelievable'
Mr Herbert, 55, of Burntwood in Staffordshire, who has been metal detecting for 18 years, came across the hoard as he searched land belonging to a farmer friend over five days in July. The exact location has not been disclosed.
"I have this phrase that I say sometimes; 'spirits of yesteryear take me where the coins appear', but on that day I changed coins to gold," he said.
"I don't know why I said it that day but I think somebody was listening and directed me to it.
"This is what metal detectorists dream of, finding stuff like this. But the vast amount there is is just unbelievable."
BBC correspondent Nick Higham said the hoard would be valued by the British Museum and the money passed on to Mr Herbert and the landowner.
Duncan Slarke, finds liaison officer for Staffordshire, was the first professional to see the hoard which contains warfare paraphernalia, including sword pommel caps and hilt plates inlaid with precious stones.
He said he was "virtually speechless" when he saw the items.
"Nothing could have prepared me for that," he said.
"I saw boxes full of gold, items exhibiting the very finest Anglo-Saxon workmanship.
"This is absolutely phenomenal.
"It is a hugely important find - the most important one that I have dealt with, but this has got to rank as one of the biggest in the country."
Huge Anglo-Saxon gold hoard found
The UK's largest haul of Anglo-Saxon treasure has been discovered buried beneath a field in Staffordshire.