New House Farm, Llangybi

Llangybi (also spelled Llangibby) is a village and community in Monmouthshire, in southeast Wales, in the United Kingdom. It is located 3 miles (4.8 km) south of the town of Usk and 5 miles (8 km) north of Caerleon, in the valley of the River Usk. In 2011 the village itself had a population of 444, with a nearly equal number living in its outlying areas, among them the settlement of Tregrug, near the ruins of a medieval castle.

The White Hart Inn, Llangybi, Monmouthshire is a public house dating from the early 17th century. Located at a crossroads in the centre of the village, it is a Grade II* listed building.

The Church of St Cybi, Llangybi, Monmouthshire is a parish church with its origins in the 13th or 14th century. Refurbished in the 15th century, the church was restored in 1909–10. The interior has a notable collection of medieval wall paintings, in particular a Christ of the Trades, dating from c.1460. The church is an active parish church and part of the recently-formed Heart of Monmouthshire Ministry Area. It is a Grade II* listed building and the architectural writer John Newman, recording the church in the Buildings of Wales series, described it as "one of the most interesting in the Usk Valley."

Tregrug Castle (Welsh: Castell Tregrug; Welsh pronunciation: [ˈkastɛɬ trɛˈɡriːɡ]) or Llangibby Castle is a ruin in Monmouthshire, Wales, located about 1 mile (1.5 km) to the north of the village of Llangybi, close to the settlement of Tregrug. The castle appears to have superseded an earlier Norman motte-and-bailey castle, which is first mentioned in records dating from 1262. Surrounded by dense woodland, on the top of a ridge, the present remains include a large, nearly rectangular walled enclosure, about 164 m (180 yards) by 78 m (85 yards), surrounded by ditches - the size of the bailey makes it the largest single-enclosure castle in England and Wales. The bailey is entered through a gatehouse, to the left of which stands a large stone tower, known as the 'Lord's Tower'. Recent archaeological thinking suggests that the castle's main function may have been recreational rather than defensive; it was probably built as a hunting lodge, with accompanying gardens in the style of a late medieval ‘pleasance’. The castle had fallen into disuse by the 16th century but was refortified and garrisoned during the English Civil War. Slighted at the war's end, it was subsequently redeveloped as a landscape garden feature, to complement a new house, New Llangibby Castle, which was built in the grounds at the very end of the 17th century.

Ton Farmhouse, Llangybi, Monmouthshire is a farmhouse dating from the early 17th century. John Newman, in his Monmouthshire Pevsner, describes it as a "perfect Monmouthshire farmhouse". Ton is a Grade II* listed building, its listing noting that it is a "remarkably good survival" of a prosperous 17th century Welsh farmhouse.

The Church of St Andrew, Tredunnock, Monmouthshire is a parish church with its origins in the 12th or 13th century. A Grade II* listed building, the church remains an active parish church.

Tredunnock (Welsh: Tredynog) is a small village in Monmouthshire, south east Wales, in the United Kingdom. Tredunnock is located four miles (6.4 km) northeast of Caerleon and four miles south of Usk.

The Olway Brook (Welsh: Nant Olwy) is a left bank tributary of the River Usk in Monmouthshire in south Wales. Arising from the confluence of several brooks in the vicinity of Llansoy including the Llangofen, Penarth and Pontyrhydan brooks, it flows west to Llandenny, where it is joined by the Nant y Wilcae from Raglan, then southwest to be joined by the waters of the Pill brook and Llan-gwm-isaf Brook. Approaching the edge of the town of Usk it does not join the River Usk here but flows south, sub-parallel to the major river for over 3 km before joining it 750m south of the hamlet of Llanllowell. The catchment of the brook is almost wholly Old Red Sandstone.

Newbridge-on-Usk (Welsh: Pontnewydd ar Wysg) is a hamlet in the village and parish of Tredunnock, near Usk, Monmouthshire, south east Wales, in the United Kingdom.

The Usk Inlier is a domed outcrop of rock strata of Silurian age in Monmouthshire in south-eastern Wales. It is located in the countryside between the towns of Caerleon and Pontypool and the village of Raglan. The longer axis of the dome or 'pericline', often referred to as the Usk Anticline, is aligned north–south. The inlier is largely surrounded by a sequence of Old Red Sandstone rocks of Devonian age, though both these and the Silurian rocks are largely obscured by superficial deposits.

New Bridge crosses the River Usk at Newbridge-on-Usk between Usk and Caerleon. The bridge carries the B4236. It was constructed in 1779, probably by William Edwards, a prominent civil engineer of Pontypridd, or by a member of his bridge-building dynasty. The bridge has Grade II* listed building status.

The Church of St Peter, St Paul and St John, is the parish church of Llantrisant, Monmouthshire, Wales. Described by the architectural historian, John Newman as "a handsome church" in the Decorated style, it is a Grade I listed building as of 18 November 1980.