Four Shire Stone

The Four Shire Stone is a boundary marker that marks the place where the four historic English counties of Warwickshire, Oxfordshire, Gloucestershire, and Worcestershire once met. Since 1931, with a change to the boundaries of Worcestershire, only the former three counties have met at the stone.
Boundary marker.
The Four Shire Stone is not a single stone, but a nine-foot high monument, built from the local Cotswold stone. It is in the English midlands at the northern corner of a T junction on the A44 road, a mile and a half east of the small town of Moreton-in-Marsh, at , grid reference SP2301432023. The existing structure was probably built in the 18th century, and is a grade II listed building. There was an earlier "4 Shire Stone" on or near the site in 1675, almost certainly that illustrated in 1660. Thomas Habington's "Survey of Worcestershire" mentions "the stone which toucheth four sheeres, a thing rarely scene".
Five (formerly seven) civil parishes meet at the stone: 
Most of Worcestershire is to the north-west of the stone. Thus the order of the four counties around the stone was different from what one might expect from a map of England. The stone ceased to be the meeting-point of four shires in 1931, when Evenlode was transferred to Gloucestershire, so since that date only three counties meet at the stone.
The J. R. R. Tolkien Society claims that the Four Shire Stone inspired the "Three-Farthing Stone" in J. R. R. Tolkien's book "The Lord of the Rings". In that work, the Shire, the homeland of the hobbits is divided into four farthings, three of which meet at the "Three-Farthing Stone".