The Zenith Passage of the Sun and its role in the Planning of Architectures

Summer and winter solstices and equinoxes had great importance in the cultures of peoples all over the world, and these astronomical events had been widely considered in the planning of monuments and other architectures. But in the tropical zone of the Earth, between the Tropics of Cancer and Capricorn, we can see another relevant event, the zenith passage of the sun. In this paper we will see that several examples are existing too, of the role of this astronomic event in the architectures of tropical zone.