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Country guide

United States

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...

Photograph · Tuxyso · CC BY-SA 3.0

43,277 Places
10Cities

Reviewed by Elena Voss · Roavina Travel Editor

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.

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 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

Top things to see

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

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189 places match

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Category

Historic monuments 7 Museums 189 Places of worship 0 Nature sites 1 Viewpoints 2 Food and drink 0 Markets and shopping 1 Entertainment 19 Nightlife 3 Family attractions 16 Art and culture 2 Activities 46

Typical visit duration

Up to 1 hour 1 1 to 2 hours 189 Half a day or more 1

Interests

History 4 Art 0 Museums 4 Nature 0 Sea and beach 0 Viewpoints 0
  1. Kennedy Space Center Visitor Complex Kennedy Space Center Visitor Complex
    01 1 hr 30 min

    Kennedy Space Center Visitor Complex

    The Kennedy Space Center Visitor Complex is the official visitor attraction for NASA's Kennedy Space Center on Florida's Space Coast.

    • Must see
    • Museum
    • Orlando
  2. Adler Planetarium Adler Planetarium
    02 2 hours

    Adler Planetarium

    The Adler Planetarium is a public museum dedicated to astronomy and astrophysics.

    • Must see
    • Museum
    • Chicago
  3. Pearl Harbor Aviation Museum Pearl Harbor Aviation Museum
    03 1 hr 30 min

    Pearl Harbor Aviation Museum

    Pearl Harbor Aviation Museum occupies historic hangars on Ford Island in the middle of Pearl Harbor. The museum preserves and interprets aviation history related to the December 7, 1941 attack on Pearl Harbor and broader Pacific aviation heritage.

    • Must see
    • Museum
    • Honolulu
  4. Coral Castle Museum Coral Castle Museum
    04 1 hr 30 min

    Coral Castle Museum

    Coral Castle is a limestone sculpture garden in Naranja, unincorporated Miami-Dade County, Florida. Latvian-American Edward Leedskalnin single-handedly built the structure over nearly three decades, from 1923 until his death in 1951.

    • Must see
    • Museum
    • Miami
  5. Atomic Museum Vegas Atomic Museum Vegas
    05 1 hr 30 min

    Atomic Museum Vegas

    The National Atomic Testing Museum in Las Vegas explores the history of nuclear testing at the Nevada Test Site. The museum presents the scientific, military and social dimensions of atomic testing through objects, documents, photographs and interpretive displays.

    • Must see
    • Museum
    • Las Vegas
  6. Pinball Hall of Fame Pinball Hall of Fame
    06 1 hr 30 min

    Pinball Hall of Fame

    The Pinball Hall of Fame is a museum dedicated to pinball machines and related arcade amusements. It operates as a nonprofit institution with proceeds directed toward charitable causes.

    • Must see
    • Museum
    • Las Vegas
Show 25 more places

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.