<P> Most of the objects found in the Templo Mayor were offerings . Although many are of Mexica design, there are also abundant items from other peoples, brought in as tribute or through trade . Sculptures, flint knives, vessels, beads and other sumptuary ornaments--as well as minerals, plants and animals of all types, and the remains of human sacrifice--were among the items deposited in offerings . All of these fulfilled a specific function within the offering, depending on the symbolism of each object . In excavations at the Templo Mayor, different types of offerings have been found and have been grouped by researchers in terms of Time (the period in which the offering was deposited); Space (the location of the offering within the structure); Container (type and dimensions of the receptacle containing the objects); internal distribution (placement of objects within the offering) and value of the items . The offerings were usually contained in cavities, in stone urns, and in boxes made of slabs . These are found under floors; in platforms, architectural bodies, stairways and in temples . These offerings were placed accompanied by complex rituals following set temporal, spatial and symbolic patterns, depending on the intention of the offering . </P> <P> The oldest Mexica objects, located in the second temple, are two urns which contain the remains of incinerated bones; one of the urns was made of obsidian and the other of alabaster . A small silver mask and a gold bell were found inside one urn, and second gold bell and two green stone beads were placed in the other . </P> <P> Images of the gods Huehueteotl - Xiuhtecuhtli, together with Tlaloc, presided over most of the offerings found in the Templo Mayor . Representing fire and water respectively, this pair of deities probably symbolized the concept of "burning water," a metaphor for warfare . </P> <P> Another theme exhibited in this hall is autosacrifice, a ritual that was conducted in private as a personal act of communication with the gods . Widespread throughout the entire population, this practice was performed by perforating certain fleshy parts of the body--such as the earlobes, lips, tongue, chest, calves, et cetera--with obsidian blades, agave needles or bone perforators . Once the implement was covered with blood, it was inserted in straw balls called Zacatapayoli . The entirety was probably placed in ceremonial boxes--tepetlacalli--as an offering to the gods . Objects associated with human sacrifice are the "face blades" or knives decorated with eyes and teeth, as well as skull masks . Other ceremonial items include musical instruments, jewelry, and braziers for the burning of copal . </P>

Where are the ruins of the templo mayor what is there now in this place