Greenfield Valley Heritage Park

The Holywell branch line was a railway branch line in North Wales that connected Holywell with the North Wales Coast Line at Holywell Junction. Holywell had quite a large amount of mineral resources and the branch line was built originally as a mineral railway. When the local industry declined, the line fell into disuse, but it was reopened as a tourist passenger line in 1912. Road competition made the railway non-viable and this then caused the line to be closed in 1954.

The North Wales Pilgrim's Way (Welsh: Taith Pererin Gogledd Cymru) is a long-distance walking route in North Wales, running from near Holywell in the east to Bardsey Island (Welsh: Ynys Enlli) in the west. The first half of the trail takes an inland route, with the second half (from Abergwyngregyn onwards) following the north coast of the Llŷn Peninsula. It measures 133.9 miles (215 km) in length, and was officially launched at Porth y Swnt, Aberdaron on 10 July 2014.Development of the trail started in 2011, and its official opening followed a number of alterations to the original route to suit local concerns.The route, which is marked by waymarker disks, makes use of existing public rights of way, including sections of the Wales Coast Path, and along the way it visits many small stone churches, many dedicated to key Celtic Saints, which can provide shelter and rest along the trail. Whilst, historically, pilgrims would have made their way across North Wales to Bardsey Island, known as the legendary 'Island of 20,000 Saints', the trail is a modern interpretation, and does not necessarily follow old routes.The Trail is a part of the 'Our Heritage' project, a part of Cadw’s Heritage Tourism Project; this is partially funded by the European Regional Development Fund via the Welsh Government.Dr. Rowan Williams, a Welsh Anglican bishop, theologian and poet, and former archbishop of Canterbury, is patron of the route.An annual pilgrimage is organised along the full length of the route for a fortnight every May/June, and in 2018 the North Wales Pilgrim's Way Ultra - a 3-day race - saw runners competing for the North Wales Pilgrims Way Brass Shield.

Ysgol Treffynnon (formerly Holywell High School) is an 11–16 mixed, English-medium, community secondary school in Holywell, Flintshire, Wales. Previously it was Holywell Grammar School. There were 2 buildings which made up the school; Lower and Upper. The Lower building catered for 11-13 year olds and the Upper building for 14-18 year olds and included the Sixth Form. The upper building was demolished in the mid-1990s to make way for a new housing development and the Lower building was remodelled to accommodate the whole school into one building.

Greenfield (Welsh: Maes-glas) is a village in the community of Holywell, Flintshire, north-east Wales, on the edge of the River Dee estuary. At the time of the 2001 census it had a population of 2,741, which remained unchanged in the 2011 census.The Welsh language name of the village, Maes-glas or Maesglas, has the same meaning as "Greenfield". The name Maesglas was recorded in 1579, with the English version recorded as "Fulbroke al[ias] Greneffelde" as early as 1540.

Holy Trinity Church, Greenfield, is in Basingwerk Avenue, Greenfield, Flintshire, Wales (grid reference SJ194776). It is an active Anglican church in the former parish of Holywell, the Estuary and Mountain Mission Area, the archdeaconry of St Asaph and the diocese of St Asaph. The church was designated as a Grade II listed building on 19 August 1991.The church was built in 1870–71 to a design by Ewan Christian. It consisted of a nave and a south aisle, and had lancet windows. Christian planned an apsidal chapel and a vestry at the southeast, but these were never built. The church was licensed for worship on 18 October 1871. In 1910–11 the Chester architect John Douglas added a chancel in a simpler design. The church was consecrated on 25 April 1911. The current Vicar of Holywell is the Rev'd Dominic Austin Cawdell OGS.

Basingwerk Abbey (Welsh: Abaty Dinas Basing) is a Grade I listed ruined abbey near Holywell, Flintshire, Wales. The abbey, which was founded in the 12th century, belonged to the Order of Cistercians. It maintained significant lands in the English county of Derbyshire. The abbey was abandoned and its assets sold following the Dissolution of the Monasteries in 1536. The site is now managed by Cadw – the national Welsh heritage agency.

St Winefride's Halt railway station was a station in Holywell, Flintshire, Wales. The station was opened on 1 July 1912 and closed on 6 September 1954. Situated on a bend there was a curved wooden platform with just the name board and gas lighting. There was a siding running behind the platform at a lower level to serve local industries. There are no remains of the halt today.

Holywell Town railway station was a station in Holywell, Flintshire, Wales. The station was opened on 1 July 1912 and closed on 6 September 1954. There was a single platform with two wooden shelters, a run round loop and extensive goods facilities. The station could be accessed by a sloping path down from a road bridge. There are no remains of the station today, just the track-bed and elevated goods yard site on the northwest side of the road over bridge.

St Winefride's Well (Welsh: Ffynnon Wenffrewi) is a holy well and national shrine located in the Welsh town of Holywell in Flintshire. The patron saint of the well, St Winefride, was a 7th-century Catholic martyr who according to legend was decapitated by a lustful prince and then miraculously restored to life. The well is said to have sprung up at the spot where her head hit the ground. This story is first recorded in the 12th century, and since then St Winefride's Well has been a popular pilgrimage destination, known for its healing waters. The well is unique among Britain's sacred sites in that it retained a continuous pilgrimage tradition throughout the English Reformation. During the Middle Ages, the well formed part of the estate of nearby Basingwerk Abbey. It was visited by several English monarchs, including Richard II and Henry IV. Following the establishment of the Church of England, attempts were made by the Protestant authorities to prevent Catholic pilgrimage to the well, but these attempts were unsuccessful. From the 18th century onwards, the well increasingly attracted secular tourism, and it was commonly believed that the well-water had natural healing properties by virtue of its mineral content. Two bath-houses were built on the site in 1869. In 1917, the well dried up as a result of mining operations in the Greenfield valley; to get it flowing again, water had to be diverted from a new underground source. The chapel above the well was built in the 16th century. It is a grade I listed building and a scheduled ancient monument. It comprises two parts, the upper chapel and the well crypt. The upper chapel has seen a variety of uses, including service as a sessions house and a secular day school, but is presently used for religious worship. The well crypt contains a star-shaped basin that encloses the well-spring, and an 18th-century statue of St Winefride. Both sections of the chapel are under state guardianship and managed by Cadw. The well complex is currently open to visitors, who may bathe in the water at certain times of day or fill water bottles from an outdoor tap. There is a visitors' centre and museum on the site. Organised group pilgrimages take place several times a year, and during the pilgrimage season, St Winefride's relic is venerated daily in the well crypt.

Holywell Junction railway station was a junction station located on the north-eastern edge of Holywell and Greenfield, in Flintshire, Wales, on the estuary of the River Dee.

St Winefride's Church (also known as St Winifred's Church or St Winefred's Church) is a Roman Catholic Parish church in Holywell, Flintshire. It was founded by the Society of Jesus and was until recently the first church in the United Kingdom to be administered by the Vocationist Fathers now since departed as the parish returns into diocesan hands. It is Grade II listed building. It was the first church the Jesuits built in Wales.

Holywell was a rural district in the administrative county of Flintshire, Wales, from 1894 to 1974. The district was created by the Local Government Act 1894 as successor to Holywell Rural Sanitary District. The Rural District Council was based in the town of Holywell, which was a separate urban district. Holywell Rural District was abolished in 1974 by the Local Government Act 1972, becoming part of the district of Delyn in the county of Clwyd. The district contained the following civil parishes: