Ireland
Every logged mystery in this country.
- County Tipperary
Derrynaflan
Two men with a metal detector lifted five liturgical vessels out of this bog island on February 17, 1980, and the father delivered them to the National Museum the next day. The case that followed reached the Supreme Court, which held that the state owned the hoard by right of its own sovereignty, not as heir to the Crown's treasure trove.
- County Donegal
EIRE 80, Malin Head
Neutral Ireland laid the word EIRE in whitewashed stone at more than 80 points around its coast between 1939 and 1942. In 1943, the signs were numbered at the request of the American minister in Dublin, and charts matching the numbers to positions were handed to Allied aircrews.
- County Dublin
Irish Crown Jewels, Bedford Tower
The Irish Crown Jewels were found missing from a safe in the Bedford Tower on July 6, 1907, four days before King Edward VII's visit to Dublin. The locks showed no sign of forcing, both safe keys were with the custodian, Sir Arthur Vicars, and the Scotland Yard report naming a likely thief no longer exists. A 1908 Viceregal Commission faulted Vicars for a lack of vigilance and found no evidence against the man he accused. Nothing has been recovered but the jewel box.
- County Dublin
Old Croghan Man
In 2003, a crew cutting a drain in an Offaly bog went through a human torso with no head and no legs. He died between 362 and 175 BC, stood about 6 feet 6 inches, and somebody had cut holes through his upper arms and threaded hazel withies through them.
- County Dublin
The Hellfire Club
An excavation in October 2016 found a Neolithic passage tomb under the ruined lodge on Montpelier Hill, dated between 3782 and 3377 BC. The man who built the lodge in the 1720s had quarried that tomb for its stone, which is where the story about the roof being torn off in a storm comes from.