If the two other churches are from around the world, they would be:
1. St. Peter's Basilica, located on Vatican Hill, on Vatican City, Rome, St. Peter's Basilica attracts millions of visitors from all over the world. It has a capacity for over 60,000 people, and covers 22,300 square meters (227,065 square feet). Is one of the world's greatest and largest churches. St. Peter's Basilica is one of the four Major Basilicas in the world, it gained its Basilica status due to being constructed on the place where St. Peter was buried in 64 AD.
The place where St. Peter's Basilica, in Rome, is located was originally the place where the Circus of Nero and a cemetery were located before. In 306 AD Emperor Constantine turned into the first Christian emperor of Rome and decided to construct a basilica on Vatican Hill, at the assumed location of Apostle St. Peter's tomb. Construction started in 319 AD and was completed around 349 AD. The basilica arose for over 1,000 years, however it began to decay, reason why Pope Julius II concluded that it was about time to repair it and that it would had to be demolish and rebuilt.
The new basilica took 120 years to complete, and all important architects and artists of the Roman Renaissance and Baroque were part of its design.
2. Basilica of Our Lady of Aparecida: The second biggest church in the world, only just smaller than St. Peter's Basilica, it can accommodate up to 45,000 people and is a major religious journey destination in South America, since it it located in Aparecida, Brazil. The basilica was built near an early chapel which held the Virgin statue that was found by three fishermen while they were fishing, in the town of Garantinguetá. The ancient basilica was a moderate church built with colonial technique between 1834 to 1888. It took the place of a small capel originally built in 1745.
Pope St. Pio X conceded it a minor basilica status in 1908. In 1955, Benedito Calixto began the construction of the new, actual basilica. The basilica's area is 18,000 square meters (190,000 square feet) of space, that can accommodate 45,000 people. On July 4, 1980, Pope St. John Paul II blessed the Sanctuary under the name of Our Lady of Aparecida, while it was still under construction.
