Title: Offley
Content:  Great Offley lies on the top of a chalk escarpment ridge (521 ft/159 metres above sea level) in the centre of the parish (the most north eastern ridge of the Chiltern Hills), and its population is 673. Offa, King of Mercia in the 8th century, is said to have built a palace here and thus gave his name to the village. There is a most interesting group of buildings, including Offley Place, which was rebuilt in 1810 but which retains a Tudor porch and a 17th-century wing. The church named after St. Mary Magdalene contains some attractive monuments. Its nave is Early English, and the chancel was recased and its interior built by Sir Thomas Salusbury in the 18th century. The tower dates from about 1800.
Title: Offlow
Content:  Offlow is a hundred in the county of Staffordshire, England, located in the south-east of that county. It is named after a tumulus or mound in the parish of Swinfen and Packington, 2½ miles south of Lichfield. The hundred is recorded in the Domesday Book under the name "Offelav".
Title: Offa, Wrexham
Content:  Offa is a community in Wrexham County Borough, Wales, covering most of the south-western portion of the town of Wrexham. It is bordered by the communities of; Rhosddu, and Caia Park to the north, Abenbury to the east, Esclusham, and Marchwiel to the south, and Broughton, Coedpoeth, and Gwersyllt to the west.
Title: Bryn Offa
Content:  Bryn Offa (Welsh; meaning Offa's Hill) is a small local-authority housing estate in the south-western suburbs of Wrexham, north-east Wales in the community of Offa, and is close to the Wrexham Maelor hospital. The main route through Bryn Offa is the A525 road to Ruthin Road. The estate is situated next to Ysgol Clywedog (formerly known as Ysgol Bryn Offa, or Bryn Offa High School), and the Shrewsbury-Chester railway line.
Title: Ófærufoss
Content:  Ófærufoss is a waterfall situated in the Eldgjá chasm in the western part of Vatnajökull National Park, Iceland. Until the early 1990s a natural bridge spanned the falls, but it collapsed from natural causes.
Title: Ogof Ffynnon Ddu
Content:   Ogof Ffynnon Ddu (Welsh for cave of the black spring), also known informally as OFD, is a cave under a hillside in the area surrounding Penwyllt in the Upper Swansea Valley in South Wales. It is the second longest cave in Wales and the deepest in the United Kingdom.
Title: Offley
Content:  Offley is a civil parish in the English county of Hertfordshire, between Hitchin and Luton. The main village is Great Offley, and the parish also contains the nearby hamlets of Little Offley and The Flints. In the south-west of the parish, near Luton, there are the hamlets of Cockernhoe, Mangrove Green and Tea Green, and also the Putteridge Bury estate; these have LU2 postcodes and 01582 telephone numbers.
Title: Offa of Mercia
Content:  Offa was frequently in conflict with the various Welsh kingdoms. There was a battle between the Mercians and the Welsh at Hereford in 760, and Offa is recorded as campaigning against the Welsh in 778, 784 and 796 in the tenth-century Annales Cambriae.  The best known relic associated with Offa's time is Offa's Dyke, a great earthen barrier that runs approximately along the border between England and Wales. It is mentioned by the monk Asser in his biography of Alfred the Great: "a certain vigorous king called Offa ... had a great dyke built between Wales and Mercia from sea to sea". The dyke has not been dated by archaeological methods, but most 
Title: 760
Content: Battle of Hereford: The Welsh kingdoms of Brycheiniog, Gwent and Powys defeat the Mercians under King Offa at Hereford. They free themselves from the influence of the Anglo-Saxons. ; Offa's Dyke is constructed around this time, according to the traditional history of this defensive earthwork. This 150-mile-long (240 km) earthwork marks the current border with the Welsh kingdoms, between England and Wales (approximate date). However, modern analysis of Offa's Dyke suggests that it was built in the 5th century, well before the reign of King Offa. 
Title: Orford Cliff
Content:  Orford Cliff Refuge (-66.91027°N, -66.48822°W) was a British refuge located in the Lallemand Fjord on the western side of the Antarctic Peninsula. The refuge, managed by the British Antarctic Survey, was inaugurated on 21 February 1957 and remained active intermittently until 10 January 1959. The hut was used by the personnel settled at Station W. The shelter was demolished and removed on 25 March 1997.

Question: In what country is Orefield?
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