A photograph of United Kingdom

Country guide

United Kingdom

The United Kingdom is 244,376 km² holding 69,281,437 people, and it is four countries rather than one: England, Scotland, Wales and Northern Ireland, with Londo...

Photograph · Colin · CC BY-SA 4.0

27,736 Places
4Cities

Reviewed by Elena Voss · Roavina Travel Editor

The United Kingdom is 244,376 km² holding 69,281,437 people, and it is four countries rather than one: England, Scotland, Wales and Northern Ireland, with London, Edinburgh, Cardiff and Belfast as their capitals. Three of the four run parliaments of their own over devolved matters, and the law splits three ways — England and Wales, Scotland, Northern Ireland. A visitor meets that in small practical things rather than at a border. London alone holds about 9.1 million of the total, which is why so many trips never leave it, and why the ones that do feel like arriving somewhere else.

Checked 2026-08-25

Cities

Every city catalogued in this country so far, ranked by how much there is to see.

Practical information

Language spoken
English; Welsh is official in Wales
National practical orientation; regional and minority languages may also be used
Dialling code
+44
International calling code; local area and mobile prefixes still apply
Currency
Pound sterling (GBP)
Use the official local currency; card acceptance varies by place
Emergency number
999 or 112
Use only for an emergency; tourist assistance may use a separate number
Plug type
Type G · 230 V
Check that chargers support the recorded voltage before using an adapter
Tap water
Safe from the mains
Public water suppliers regulate mains drinking water; use cold mains taps

Top things to see

Ranked by importance — sitelinks, pageviews and heritage status, not editor preference.

  1. Victoria and Albert Museum Victoria and Albert Museum
    02 2 hr 30 min

    Victoria and Albert Museum

    The Victoria and Albert Museum is the national museum of art, design and performance at Cromwell Road in South Kensington, and its permanent collection of more than 2.8 million objects makes it the world's largest museum of applied and decorative…

    • Must see
    • Museum
    • London
  2. Natural History Museum Natural History Museum
    03 2 hr 30 min

    Natural History Museum

    The Natural History Museum in South Kensington is both a collection of natural history and a building designed to tell that story. It opened on 18 April 1881.

    • Must see
    • Museum
    • London
  3. Science Museum Science Museum
    04 2 hr 30 min

    Science Museum

    The Science Museum on Exhibition Road in South Kensington is Britain's national museum of science, technology, engineering and medicine, founded in 1857 and independent since 26 June 1909.

    • Must see
    • Museum
    • London
  4. Kelvingrove Art Gallery and Museum Kelvingrove Art Gallery and Museum
    05 2 hr 30 min

    Kelvingrove Art Gallery and Museum

    Kelvingrove Art Gallery and Museum is Glasgow's civic art gallery and museum, not the neighbouring Kelvingrove Park or the whole Glasgow Museums collection.

    • Must see
    • Museum
    • Glasgow
  5. National Museum of Scotland National Museum of Scotland
    06 3 hours

    National Museum of Scotland

    The National Museum of Scotland is the national museum on Chambers Street, combining collections that range across Scotland, the natural world, science, technology, art and design.

    • Must see
    • Museum
    • Edinburgh

Source: OpenStreetMap contributors, Wikidata ·

Common questions

How long should a first trip to United Kingdom be?

Ten to fourteen days can cover four or five days in London, two in Manchester, and two or three each in Edinburgh and Glasgow. The Highlands, Lake District, or Welsh national parks need dedicated nights and should not be squeezed into London day trips.

What entry documents are needed for United Kingdom?

UK document rules depend on nationality and trip purpose, and many visitors now need an Electronic Travel Authorisation before boarding. Check the linked UK government visa service for both visa and ETA status shortly before travel.

What is the best way to travel around United Kingdom?

Intercity rail is the practical spine between London, Manchester, Edinburgh, and Glasgow, with advance fares usually distinct from flexible tickets. Each city runs its own local fare system, so London's contactless cap is not a nationwide travel pass.

When is a practical time to visit United Kingdom?

May to June and September are useful planning windows for this route, but conditions vary between southern England and Scotland. Festival dates in Edinburgh and rural transport in national parks can matter more than the national seasonal label.

What money and payment basics apply in United Kingdom?

The United Kingdom uses pound sterling (GBP). Contactless payment is widespread in major cities, but keep another payment method for rural services or terminals that do not share London's payment arrangements.

What practical safety details should I save for United Kingdom?

Use 999 or 112 for emergencies in the United Kingdom. Type G sockets supply 230 V, and mains tap water is recorded as safe; save rail disruption information as well when the itinerary depends on several city-to-city journeys.