The United States offers a plethora of exciting activities and sights to explore. Admire the panoramic views from atop the Empire State Building, gain insight into the country's history with a guided tour of the White House, marvel at the picturesque sunset from the Golden Gate Bridge, enjoy a scenic picnic by the Niagara Falls, discover the stunning wildlife at Yosemite National Park, and experience the magic of Walt Disney World.

Before visiting the USA, some things you need to know: The US is bigger than you think since it is the third-largest country in the world, and that makes you should plan your USA itinerary accordingly. Other than that, book your domestic flights separately with your international flights for better deals and expect to pay more when buying things because every state has its own state sales tax.

A well-planned USA trip itinerary should strike a balance between relaxation, exploration, and adventure. Allowing ample time to unwind on an idyllic island, explore vibrant coastal cities, and trek through the country's breathtaking mountain ranges, 10 days would be the perfect duration for such a trip.

It is either during spring, late March to late May, or autumn in late September to late October as the best time to visit the USA.

Considering some factors, including the average number of days per year with a maximum temperature of 90 degrees (F) or higher, the average number of days per year with a minimum temperature of 32 degrees (F) or lower, the amount of rain, clear-sky dan cloudy days per year, and other additional factors, Honolulu, Hawaii is the city with the best weather in the US.