1. The Niteroi Contemporary Art Museum (MAC) is located in the city of Niteroi, Rio de Janeiro. Designed by Brazilian architect Oscar Niemeyer, this modernist building is often referred to as the \"flying saucer\" due to its UFO-like shape. The museum is situated at the top of a cliff overlooking the Guanabara Bay, providing visitors with stunning panoramic views of Rio de Janeiro’s skyline. The interior of the museum houses a collection of contemporary art, including paintings, sculptures, photographs, and installations. MAC is considered to be one of the most important museums of contemporary art in Brazil.

2. The museum is open from Tuesday to Sunday, from 10 AM to 6 PM. The phone number is +55 21 2620-2481.

3. The entrance fee for adults is R$10, and for children, students, and seniors, it is R$5. To get to the museum, visitors can take a bus or a taxi. It is also possible to take a ferry from Rio de Janeiro to Niteroi and then take a bus or taxi from the ferry terminal to the museum.