United Kingdom
Every logged mystery in this country.
- England
Black Shuck
A black dog reported across East Anglia, and one Sunday morning in 1577 when a storm killed worshippers in two Suffolk churches. A London pamphleteer wrote it up as the devil, and Blythburgh still shows the scorch marks on its door.
- Scotland
Calvine UFO Photograph
Two men reported a diamond-shaped object hovering above the moors at Calvine on August 4, 1990, and the negatives that went to the Ministry of Defence are missing. In 2022, a retired RAF press officer donated the print he had kept, and Sheffield Hallam University's Andrew Robinson found no evidence that it was manipulated. The photographers have never been identified.
- Outer Hebrides, Scotland
Flannan Isles Lighthouse Mystery
On December 26, 1900, the relief ship Hesperus found none of the lighthouse's three keepers on Eilean Mòr; the last log entry was dated December 15. Superintendent Robert Muirhead's inquiry concluded that a large wave had most likely swept them off the west landing, citing a storage box smashed 108 feet above sea level.
- Scotland
Loch Ness
A biography of St. Columba written around 700 puts a water beast in the River Ness. The modern legend began with an Inverness Courier report on May 2, 1933. Two of the men behind the 1934 Surgeon's Photograph later said it was a toy submarine fitted with a plastic-wood neck and head. Environmental DNA sampled in 2018 turned up no reptile, shark, catfish, or sturgeon, and a great deal of eel.
- England
Pendle Hill Witches
The chief witness against the Pendle accused was Jennet Device, who was 9 years old. Her evidence helped convict her own mother, brother, and sister. Nine of the accused were hanged together at Lancaster on August 20, 1612.
- England (North Yorkshire)
RAF Menwith Hill
Thirty-odd white spheres stand in a field of Yorkshire moorland, each one hiding a satellite dish and what it is pointed at. The base carries an RAF name and a token RAF commander, and is operated by the United States National Security Agency. What passes through it has been described in leaked documents, denied in general terms, and never confirmed in detail to Parliament.
- England
Rendlesham Forest Incident
Two nights of lights in a Suffolk pine forest between two American air bases in December 1980, and a one-page memo the deputy base commander sent to the Ministry of Defence three weeks later. The lighthouse at the center of the standard explanation was demolished in 2020.
- England
Rudloe Manor
A quiet Wiltshire manor house sat atop a Cold War underground complex for decades and, according to UFO researchers, briefly served as the RAF's clearing house for sighting reports, feeding a persistent theory that evidence from Britain's most famous close encounters was filed away somewhere beneath it.
- Kent, England
Shell Grotto
On May 12, 1838, a Kent newspaper reported that workmen digging at Belle Vue Cottage in Margate had struck "a large stone" and found under it a grotto "completely studded with shells." The chalk passages run about 70 feet to a rectangular chamber lined, by the owners' estimate, with 4.6 million shells. Nobody knows who made it or when. The Grade I listing calls it most likely early 19th century, and a 2005 survey proposed a medieval chalk mine, probably reworked in the 1700s. The schoolmaster's daughter said her brother had crawled in before the official find.
- England
Stonehenge
The most heavily studied prehistoric monument in Europe, raised in stages from about 3000 BCE. It is still producing results: in 2024 the Altar Stone at its center was traced to northeast Scotland, and not to Wales, where every other imported stone came from.
- England
The Langham, London
A London hotel that opened on June 10, 1865, and served as BBC offices and studios from 1941 to 1986. In July 1973, newsreader James Alexander Gordon said he threw a boot at a figure in Victorian evening dress in Room 33 and watched the boot go straight through it.
- Scotland
The Loch Arkaig Treasure
On April 30, 1746, two French ships landed gold sent by Spain, about £35,000 in French louis d'or, at Loch nan Uamh in Arisaig, two weeks after the Jacobite army had been destroyed at Culloden. Six caskets of it reached Loch Arkaig and were hidden. The men who knew where went into hiding, into prison, or into exile, and not all of the gold was ever accounted for.
- London (City of London)
The London Stone
A block of limestone set behind glass in a wall on Cannon Street, recorded by name since about 1100 and unexplained ever since. The prophecy everyone quotes about it, that London stands only so long as the stone is safe, was written by a Welsh clergyman in the 1860s.
- England
Tower of London
In 1816, a sentry at the Jewel House reportedly bayoneted a bear-shaped apparition and died of shock days later. In October 1817, Edmund Swifte, Keeper of the Crown Jewels, said he threw a chair through a glowing, cylinder-shaped apparition in the same building.