The Welsh National Quidditch Stadium, home to the Holyhead Harpies, is situated along the northern Welsh coastline and is the center of Britain’s Quidditch scene. The arena’s stone stands rise steeply above the sea, reinforced with weather charms against the relentless coastal winds, making matches here famously unpredictable. Training camps, league fixtures, and international exhibitions all take place on its shimmering pitch.

Tucked away in central Cardiff and hidden behind a false storefront that appeared to be nothing more than a dusty accounting office, the Cynefrid Healing Institute functions as Wales' largest magical hospital. The instant a witch or wizard steps through the warped front door, the cramped storefront opens into a vast, magically expanded complex of bright corridors. Dozens of specialized wings handle everything from hex injuries and potion accidents to creature bites, spell backlash, and experimental mishaps better left unmentioned.

On the West side of Cardiff's Pierhead Building is an old iron door marked Coal Storage: Keep Out. To Muggles, the door never opens, the key assumed to be lost to time. For wizards, however, it swings freely into a long ramp that descends into the Mooring Bay. The Mooring Bay's vaulted ceiling curves high overhead in sweeping arches of dark iron. Between the iron stretch panels of glass veined with bronze, casting fractured sunlight across the polished stone floor below.
At the far end of the hall, the ceiling curves upward into a great, domed aperture of interlocking glass and iron. When the ship enters or leaves, the structure opens like the petals of a mechanical flower, allowing the ship to transport its passengers North or bring them safely home.

Located beneath central London, the Ministry of Magic is the administrative heart of wizarding Britain. Hidden behind a network of inconspicuous entrances, the Ministry opens into a vast underground complex of atriums, offices, and secured corridors that run far deeper than Muggles could ever imagine. Its departments manage everything from law enforcement and magical regulation to transportation, international relations, magical creature governance, and the steady churning of paperwork that keeps the country's spellwork lawful and functioning.

Diagon Alley is London’s premier shopping district, a crowded stretch of crooked buildings packed with stores, cafés, and supply shops. Students living in England often come here for textbooks, potion ingredients, robes, and just about anything else they may need. Shops are stacked close together, all leaning roofs, brass fittings, and crooked chimneys exhaling smoke. Students come from all over the world to receive their first wand here from Ollivander's.

A remote, wind-lashed fortress that rises from the sea, the wizarding prison of Britain. Inside is a maze of narrow corridors and echoing chambers built from stone that seems to swallow sound. Lanterns burn with greenish light that never warms, and enchantments crawl like thin frost across the walls. The guard spells drift in a slow orbit overhead, silent and watchful. Access is tightly controlled, and few visit willingly. Most visitors do not stay long; even fewer return unchanged.