Juazeiro + Petrolina, Brazil

Juazeiro is a city and municipality in eastern Brazil in the state of Bahia.
Petrolina is a city located in the southernmost point of the state of Pernambuco, in Brazil. It is situated on the left bank of the São Francisco River across from its twin city of Juazeiro.
On the postcard we can see the bridge which connect these two cities. 

Gramado, Brazil

Gramado is a municipality and small touristic town, southeast of Caxias do Sul and east of Nova Petrópolis in the southern Brazilian state of Rio Grande do Sul, in the Serra Gaúcha region. The town was originally settled by Azorean descendents and later received a contingent of German and Italian immigrants. Gramado is one of the towns along the scenic route known as Rota Romântica.
Lago Negro (Black Lake) is the most known, visited green area of Gramado. It was created in 1953 by Leopoldo Rosenfeld on an area it was the biggest woods of the Hydrangeas' Region, this very area had been destroyed by fire in 1942. It was named after Good Rest Valley (Vale do Bom Retiro) before fire.
Gramado hosts the Festival de Gramado, a major South American film festival and Gramado's most important event. Gramado is also known by hydrangeas blossoming in late spring. Another key event in Gramado is Natal Luz, when Gramado is decked out in lights and wreaths made of recycled material by local residents.

Rio de Janeiro, Brazil

 

Rio de Janeiro, commonly referred to simply as Rio, is the capital city of the State of Rio de Janeiro, the second largest city of Brazil, and the third largest metropolitan area and agglomeration in South America, boasting approximately 6.3 million people within the city proper, making it the 6th largest in the Americas, and 26th in the world.
Rio de Janeiro is one of the most visited cities in the southern hemisphere and is known for its natural settings, carnival celebrations, samba, Bossa Nova, balneario beaches such as Barra da Tijuca, Copacabana, Ipanema, and Leblon. Some of the most famous landmarks in addition to the beaches include the giant statue of Christ the Redeemer ("Cristo Redentor") atop Corcovado mountain, named one of the New Seven Wonders of the World; Sugarloaf mountain (Pão de Açúcar) with its cable car; the Sambódromo, a permanent grandstand-lined parade avenue which is used during Carnival; and Maracanã Stadium, one of the world's largest football stadiums.

Caxias do Sul, Brazil

Caxias do Sul is a city in Rio Grande do Sul, Southern Brazil, situated in the state's mountainous Serra Gaúcha region. It was established by Italian immigrants on June 20, 1890. Today it is the second largest city in the state of Rio Grande do Sul. The demonym of the citizens of Caxias do Sul is Caxiense.