Roavina

Country guide

United States

A photograph of United States
Photograph · Tuxyso · CC BY-SA 3.0

At 9,833,520 km² the United States has the fourth-largest land area in the world, and its 50 states and federal district span enough longitude that the ordinary clock runs from UTC−4 to UTC−10, with the territories reaching −12, +10 and +11. The 2025 population estimate is 341,784,857. Washington, D.C. is the capital and New York the largest city, but neither stands in for the rest of it. Distance is the planning problem here, not choice: a trip works far better as one region covered properly than as anything resembling a national tour.

Reviewed by Elena Voss · Roavina Travel Editor

Cities

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

Practical information
Language spoken
English is the principal language; no federal official language
National practical orientation; regional and minority languages may also be used
Dialling code
+1
International calling code; local area and mobile prefixes still apply
Currency
United States dollar (USD)
Use the official local currency; card acceptance varies by place
Emergency number
911
Use only for an emergency; tourist assistance may use a separate number
Plug type
Type A and B · 120 V
Check that chargers support the recorded voltage before using an adapter
Tap water
Not recorded
Water quality is regulated locally; check the current notice for the destination

Planning a visit

  1. January: seasonal closure recorded
  2. February: seasonal closure recorded
  3. March: seasonal closure recorded
  4. April: seasonal closure recorded
  5. May: seasonal closure recorded
  6. June: seasonal closure recorded
  7. July: seasonal closure recorded
  8. August: seasonal closure recorded
  9. September: seasonal closure recorded — this month
  10. October: seasonal closure recorded
  11. November: seasonal closure recorded
  12. December: seasonal closure recorded

Top things to see

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

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Category

Historic monuments 157 Museums 1 Places of worship 33 Nature sites 174 Viewpoints 15 Food and drink 1 Markets and shopping 19 Entertainment 2 Nightlife 0 Family attractions 0 Art and culture 53 Activities 1

Typical visit duration

Up to 1 hour 1 1 to 2 hours 46

Interests

History 0 Art 0 Museums 0 Nature 0 Sea and beach 0 Viewpoints 0
  1. Staten Island Ferry Staten Island Ferry
    01 1 hour

    Staten Island Ferry

    The Staten Island Ferry is a public ferry service connecting Manhattan and Staten Island across New York Harbor. It operates as a municipal transit service within the city's transportation network.

    • Must see
    • Activity
    • New York

Source: OpenStreetMap contributors, Wikidata ·

Common questions

How long should a first trip to United States be?

Ten to fourteen days should focus on one US region: New York, Washington, and Boston work together by rail, while San Francisco, Los Angeles, and Las Vegas form a different trip. Miami, Orlando, and Honolulu each require separate travel time and should not be appended casually.

What entry documents are needed for United States?

US admission depends on passport, visa status, and eligibility for the Visa Waiver Program and ESTA. Confirm both the Department of State visa guidance and Customs and Border Protection requirements for the actual route.

What is the best way to travel around United States?

Domestic flights are often necessary between US regions, while Amtrak is strongest on the Northeast Corridor. A car is unnecessary in New York or Washington but can be useful in Los Angeles and beyond compact city centres.

When is a practical time to visit United States?

April to May and September to October are broad shoulder-season references, not a national weather forecast. Florida heat, western wildfire conditions, hurricane exposure, and Hawaii's trans-Pacific logistics require destination-specific checks.

What money and payment basics apply in United States?

The United States uses the US dollar (USD). Card use is widespread, but taxes, deposits, and gratuities can make the final amount differ from the displayed base price; keep a second payment method for holds or terminal failures.

What practical safety details should I save for United States?

Dial 911 for police, fire, or medical emergencies in the United States. Type A and B sockets use 120 V; national tap-water safety is not recorded here, so consult the local utility or accommodation.