The United States of America (U.S.A.), commonly referred to as the United States (U.S.), America, and sometimes the States, is a federal republic consisting of 50 states and a federal district. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is located in the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The country also has five populated and nine unpopulated territories in the Pacific and the Caribbean. At 3.80 million square miles (9.85 million km2) and with around 318 million people, the United States is the world's fourth-largest country by total area and third-largest by population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife.
Paleo-Indians migrated from Eurasia to what is now the U.S. mainland around 15,000 years ago, with European colonization beginning in the 16th century. The United States emerged from 13 British colonies located along the Atlantic seaboard. Disputes between Great Britain and the colonies led to the American Revolution. On July 4, 1776, as the colonies were fighting Great Britain in the American Revolutionary War, delegates from the 13 colonies unanimously issued the Declaration of Independence. The war ended in 1783 with the recognition of independence of the United States from the Kingdom of Great Britain, and was the first successful war of independence against a European colonial empire. The current Constitution was adopted on September 17, 1787. The first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil rights and freedoms.
Driven by the doctrine of manifest destiny, the United States embarked on a vigorous expansion across North America throughout the 19th century. This involved displacing native tribes, acquiring new territories, and gradually admitting During the second half of the 19th century, the American Civil War ended legal slavery in the country. By the end of that century, the United States extended into the Pacific Ocean, and its economy began to soar. The Spanish-American War and I confirmed the country's status as a global military power. The United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, and as a permanent member of the United Nations Security Council. The end of theCold War and the dissolution of the Soviet Union left the United States as the sole superpower.
The United States is a developed country and has the world's largest national economy. The economy is fueled by an abundance of natural resources and high worker productivity. While the U.S. economy is considered post-industrial, it continues to be one of the world's largest manufacturers. The country accounts for 37% of global military spending being the world's foremost economic and military power, a prominent political and cultural force, and a leader in scientific research and technological innovations.
As one of the largest and most diverse countries in the world, The United States boast an amazing amount of tourist destinations ranging from the skyscrapers of New York and Chicago, the natural wonders of Yellowstone and Alaska to the sunny beaches of California, Florida and Hawaii. With so many tourist attractions it's tempting to list entire cities or even states, but in this top 10 I have tried to focus on specific attractions.
White House, Denali National Park, Las Vegas Strip, Florida Keys, Kilauea, Niagara Falls, Golden Gate Bridge, Yellowstone, Manhattan, Grand Canyon
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