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. British Library British Library
    07 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 monument
    • London
  2. St Paul's Cathedral St Paul's Cathedral
    08 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 monument
    • London
  3. Hyde Park Hyde Park
    09 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 monument
    • London
  4. Kensington Palace Kensington Palace
    10 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 monument
    • London
  5. Kew Gardens Kew Gardens
    11 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 monument
    • London
  6. Big Ben Big Ben
    12 1 hr 45 min

    Big Ben

    Elizabeth Tower

    Big Ben is the bell, not the tower.

    • Must see
    • Historic monument
    • London
  7. Palace of Westminster Palace of Westminster
    13 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 monument
    • London
  8. Wembley Stadium Wembley Stadium
    14 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 monument
    • London
  9. Trafalgar Square Trafalgar Square
    15 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 monument
    • London
  10. Edinburgh Castle Edinburgh Castle
    16 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 monument
    • Edinburgh
  11. 10 Downing Street 10 Downing Street
    17 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 monument
    • London
  12. The Shard The Shard
    18 45 min

    The Shard

    The Shard is a glass-clad skyscraper on the south bank of the River Thames, in London’s London Bridge Quarter.

    • Must see
    • Historic monument
    • London
  13. Royal Opera House Royal Opera House
    19 45 min

    Royal Opera House

    The Royal Opera House is a major performing arts venue in London's Covent Garden district. It serves as the home of The Royal Opera, The Royal Ballet, and the Orchestra of the Royal Opera House.

    • Must see
    • Historic monument
    • London
  14. Holyrood Palace Holyrood Palace
    20 2 hours

    Holyrood Palace

    Palace of Holyroodhouse

    The Palace of Holyroodhouse is the King's official residence in Scotland and a public visit that combines royal rooms, the remains of Holyrood Abbey and palace gardens.

    • Must see
    • Historic monument
    • Edinburgh
  15. Piccadilly Circus Piccadilly Circus
    21 20 min

    Piccadilly Circus

    Piccadilly Circus is a road junction in the City of Westminster, not a building and not a site with a gate, and everything a visitor comes to see stands in or around the traffic.

    • Must see
    • Historic monument
    • London
  16. Hampton Court Palace Hampton Court Palace
    22 3 hr 30 min

    Hampton Court Palace

    Hampton Court Palace is a Tudor and Baroque royal palace on the Thames 12 miles (19 kilometres) southwest and upstream of central London, in the London Borough of Richmond upon Thames.

    • Must see
    • Historic monument
    • London
  17. Royal Albert Hall Royal Albert Hall
    23 45 min

    Royal Albert Hall

    Royal Albert Hall is the circular concert hall on Kensington Gore in South Kensington, London. Queen Victoria opened it in 1871 and named it for Prince Albert.

    • Must see
    • Historic monument
    • London
  18. Banqueting House Banqueting House
    24 45 min

    Banqueting House

    The Banqueting House is a historic building in Whitehall, London. It is the only surviving complete component of the Palace of Whitehall, which was largely destroyed by fire in 1698.

    • Must see
    • Historic monument
    • London
  19. St James's Park St James's Park
    25 45 min

    St James's Park

    St. James's Park

    St James's Park is a Royal Park in central London, located in the City of Westminster. It is the oldest of the capital's eight Royal Parks, with origins dating back to the Tudor period.

    • Must see
    • Historic monument
    • London
  20. Wellington Arch Wellington Arch
    26 45 min

    Wellington Arch

    Wellington Arch is a triumphal arch at Hyde Park Corner in central London.

    • Must see
    • Historic monument
    • London
  21. Kenwood House Kenwood House
    27 45 min

    Kenwood House

    Kenwood House is a historic neoclassical villa situated on the northern edge of Hampstead Heath in London. The property is managed by English Heritage and is renowned for its exceptional art collection, including works by Rembrandt, Vermeer, and Gainsborough.

    • Must see
    • Historic monument
    • London
  22. Abbey Road Studios Abbey Road Studios
    28 45 min

    Abbey Road Studios

    Abbey Road Studios is a world-famous recording studio in London, England. Established in 1931, it is most celebrated as the location where The Beatles recorded the majority of their albums, including the iconic "Abbey Road" album named after the street.

    • Must see
    • Historic monument
    • London
  23. St Martin-in-the-Fields St Martin-in-the-Fields
    29 45 min

    St Martin-in-the-Fields

    St Martin-in-the-Fields is an Anglican church located in the northeast corner of Trafalgar Square in central London. The building occupies a prominent position facing the National Gallery.

    • Must see
    • Historic monument
    • London
  24. Kensington Gardens Kensington Gardens
    30 45 min

    Kensington Gardens

    Kensington Gardens is one of the Royal Parks of London, situated immediately to the west of Hyde Park. The gardens were originally the private grounds of Kensington Palace, and were opened to the public in the nineteenth century.

    • Must see
    • Historic monument
    • London
  25. Marble Arch Marble Arch
    31 45 min

    Marble Arch

    Marble Arch is a white Carrara marble triumphal arch at the north-east corner of Hyde Park, beside the meeting point of Oxford Street, Park Lane and Edgware Road.

    • Must see
    • Historic monument
    • 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.