Brazil isn't the kind of destination you can sum up with Rio, beaches, and Carnival.

The country is enormous.

You could spend one trip in Rio de Janeiro, another exploring São Paulo, another heading toward Salvador, another visiting the Amazon, and another seeing Iguaçu Falls, and come home feeling as though you've visited several different countries.

For U.S. citizens planning Brazil travel, though, there's something to do before deciding which pair of shoes belongs in the suitcase.

Check your documents.

Brazil has changed its entry policies for Americans over the years, so don't rely on what happened during a previous trip or what a friend remembers doing several years ago. Check the current requirements for your nationality, reason for travel, and intended length of stay.

Your U.S. passport also needs to be ready for the trip.

Look at its condition, available pages, and validity well before departure. Airlines and border authorities don't care that your passport damage "isn't really that bad" if they decide the document isn't acceptable.

Then think about what you're actually going to do in Brazil.

Tourism is one thing. Business activities can be another. Employment, study, extended stays, and other purposes may involve different immigration requirements.

You'll also want to think beyond entry documents.

Brazil is a vast country, so transportation becomes part of the planning quickly. Domestic flights are useful when covering long distances. In some areas, renting a vehicle can make sense. If driving is part of your plan, research the driver's license and International Driving Permit requirements that apply to your situation.

Health preparation deserves attention too. Your plans for a few days in Rio may be very different from a trip deep into another region of Brazil. Check current health guidance for the specific places you'll visit rather than treating the entire country as though conditions are identical.

And give yourself some breathing room in the itinerary.

São Paulo is worth experiencing rather than simply using its airport. Rio deserves more than a photograph of Christ the Redeemer. Salvador brings a completely different history, architecture, cuisine, and culture into the trip. Nature travelers have the Pantanal, Amazon, beaches, mountains, and Iguaçu Falls to consider.

There's another side of Brazil travel that Texas Tower handles as well.

Not everyone traveling between the United States and Brazil is doing so with a U.S. passport.

Brazilian citizens living in the United States eventually need to deal with Brazilian passport renewal. Texas Tower provides Brazilian passport renewal assistance in addition to helping U.S. citizens with documents needed for travel to Brazil.

That makes Brazil an unusual travel-document destination because there can be paperwork involved in both directions.

Whether you're an American planning your first trip to Brazil, a frequent visitor, someone traveling for business, or a Brazilian citizen dealing with passport renewal from the United States, start with the documents.

Then you can move on to the much harder decisions.

Like trying to choose between Rio, Salvador, São Paulo, the Amazon, Iguaçu Falls...

Or admitting that you're probably going to need another trip.