Marco Zero - Credit: Wikimedia Commons
Marco Zero (Zero Milestone) is a geographic monument in downtown São Paulo. In 1934, the marble milestone was installed in front of the São Paulo Cathedral on the Praça da Sé to symbolize the center of the city. The sculpture is a both a tourist attraction and a central point of reference for street numbers in the city. Marco Zero has been registered for historic preservation since 2007. Read more on Wikipedia
Source: en.wikipedia.org