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

27,738 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. Maritime Greenwich Maritime Greenwich
    02 2 hours

    Maritime Greenwich

    Maritime Greenwich is a historic district in southeast London, recognised as a UNESCO World Heritage Site. It encompasses significant maritime heritage structures including the Royal Observatory, the Old Royal Naval College, the National Maritime Museum, and the preserved town centre.

    • Must see
    • Historic site
    • London
  2. The Clydeside Distillery The Clydeside Distillery
    03 1 hour

    The Clydeside Distillery

    The Clydeside Distillery is a whisky distillery and visitor attraction located on the River Clyde in Glasgow. It occupies the former site of the Queen's Dock pump house, a historic industrial building.

    • Must see
    • Museum
    • Glasgow
  3. Buckingham Palace Buckingham Palace
    04 1 hr 30 min

    Buckingham Palace

    Buckingham Palace is the London residence and the administrative headquarters of the British monarch, standing at the western end of The Mall in the City of Westminster.

    • Must see
    • Historic site
    • London
  4. Westminster Abbey Westminster Abbey
    05 2 hours

    Westminster Abbey

    Westminster Abbey brings together royal ceremony, memorials and daily worship in a church whose architecture developed over centuries. Coronations have taken place here since 1066.

    • Must see
    • Historic site
    • London
  5. Tower Bridge Tower Bridge
    06 1 hr 15 min

    Tower Bridge

    Tower Bridge combines a working Thames crossing with a visitor attraction inside its towers and former engine rooms. Crossing on the public pavement does not require an attraction ticket; going upstairs to the Walkways does.

    • Must see
    • Historic site
    • London
  6. Tower of London Tower of London
    07 3 hours

    Tower of London

    The Tower of London is a fortified royal site on the north bank of the Thames, built around the White Tower. William the Conqueror began the stone keep in the 1070s to assert Norman power over London.

    • Must see
    • Historic site
    • London
  7. British Museum British Museum
    08 3 hours

    British Museum

    The British Museum brings together objects from human history, art and culture across more than fifty galleries. It is a collection visit: choose the cultures or objects that interest you before deciding how much of the building to cover.

    • Must see
    • Museum
    • London
  8. London Eye London Eye
    09 1 hour

    London Eye

    The London Eye is a 135-metre observation wheel beside the Thames on London's South Bank.

    • Must see
    • Historic site
    • London
  9. British Library British Library
    10 1 hr 30 min

    British Library

    The British Library is the national library of the United Kingdom and, by collection size, one of the largest libraries in the world: more than 200 million items, including roughly 13.95 million books, 351,116 manuscripts, 8.27 million philatelic items and…

    • Must see
    • Historic site
    • London
  10. St Paul's Cathedral St Paul's Cathedral
    11 2 hours

    St Paul's Cathedral

    St Paul's Cathedral is the cathedral church of the Diocese of London and the great domed building on Ludgate Hill, designed by Sir Christopher Wren and built between 1675 and 1710 after the medieval cathedral on the site burned in…

    • Must see
    • Historic site
    • London
  11. Hyde Park Hyde Park
    12 1 hr 30 min

    Hyde Park

    Hyde Park is a 350-acre (140-hectare) royal park in the City of Westminster, the largest of the four central London parks and the one that runs west from Marble Arch and Hyde Park Corner to the Serpentine and the boundary…

    • Must see
    • Historic site
    • London
  12. Kensington Palace Kensington Palace
    13 2 hours

    Kensington Palace

    Kensington Palace is a royal residence on the western edge of Kensington Gardens, half of it open as a historic house and half of it still lived in.

    • Must see
    • Historic site
    • London
  13. Kew Gardens Kew Gardens
    14 3 hr 30 min

    Kew Gardens

    Royal Botanic Gardens, Kew

    Kew Gardens is the London site of the Royal Botanic Gardens, Kew: a working scientific institution and a UNESCO World Heritage landscape rather than a single conservatory or historic house.

    • Must see
    • Historic site
    • London
  14. Big Ben Big Ben
    15 1 hr 45 min

    Big Ben

    Elizabeth Tower

    Big Ben is the bell, not the tower.

    • Must see
    • Historic site
    • London
  15. Palace of Westminster Palace of Westminster
    16 2 hours

    Palace of Westminster

    The Palace of Westminster is the seat of the two houses of the United Kingdom Parliament and, unlike the other great buildings on this stretch of the Thames, it is a workplace before it is a monument.

    • Must see
    • Historic site
    • London
  16. Victoria and Albert Museum Victoria and Albert Museum
    17 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
  17. Wembley Stadium Wembley Stadium
    18 45 min

    Wembley Stadium

    Wembley Stadium is England’s national football stadium in north-west London. The current building opened on the site of the original 1923 stadium after that structure was demolished in 2003.

    • Must see
    • Historic site
    • London
  18. Trafalgar Square Trafalgar Square
    19 40 min

    Trafalgar Square

    Trafalgar Square is the ceremonial public square at the top of Whitehall in the City of Westminster, owned by the King in Right of the Crown and managed by the Greater London Authority.

    • Must see
    • Historic site
    • London
  19. Edinburgh Castle Edinburgh Castle
    20 2 hours

    Edinburgh Castle

    Edinburgh Castle sits on a plug of volcanic rock at the head of the Royal Mile, and it is the reason the city grew where it did.

    • Must see
    • Historic site
    • Edinburgh
  20. Natural History Museum Natural History Museum
    21 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
  21. Madame Tussauds Madame Tussauds
    22 1 hr 30 min

    Madame Tussauds

    Madame Tussauds London is a self-guided wax-figure attraction on Marylebone Road, rather than a conventional museum where every object is viewed behind glass. The operator describes more than 150 figures across themed spaces and additional immersive experiences.

    • Must see
    • Museum
    • London
  22. 10 Downing Street 10 Downing Street
    23 45 min

    10 Downing Street

    10 Downing Street is the official residence and working address of the Prime Minister of the United Kingdom, in Westminster beside Whitehall. Its black door and white number 10 have become instantly recognisable symbols of British government.

    • Must see
    • Historic site
    • London
  23. Science Museum Science Museum
    24 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
  24. Royal Observatory Royal Observatory
    25 1 hr 30 min

    Royal Observatory

    Royal Observatory Greenwich

    The Royal Observatory stands on the hill in Greenwich Park where Charles II commissioned it in 1675 to fix longitude at sea, and it is the reason the world sets its clocks from a line drawn through south-east London.

    • Must see
    • Museum
    • London

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.