In front of the main façade of the Metropolitan Cathedral, you can see the remains of a wall that could be part of the side chapels and sacristy of the Main Church or Old Cathedral of Mexico.

The second window, facing the main façade of the Metropolitan Cathedral, displays the volcanic stone remains that were part of a wall of the First Cathedral.

The archaeological remains found in the third window, opposite the main façade of the Metropolitan Cathedral, correspond to a side chapel of the Main Church or First Cathedral.

The last window in the atrium of the Metropolitan Cathedral reveals a stucco floor that forms part of a corridor bordered by walls of texonle stone and pink andesite, which was part of the Main Church or Old Cathedral.

Colonial and Mexica walls and floors were found in the space currently occupied by the Mexico City Government's Historic Center Authority building.

Above the pedestrian walkway on República de Argentina Street, there are remains of a large Mexica foundation.

Above the pedestrian walkway on República de Argentina Street, there are remains of a large Mexica foundation.

Remains of a staircase and two sculptures led to the creation of archaeological windows. These vestiges were found inside a neoclassical building, constructed between 1795 and 1805 by architect Manuel Tolsá.

The Site Museum at the Spanish Cultural Center in Mexico displays a building that, based on archaeological evidence, is considered to be part of El Calmecac (Row of Houses).

Beneath a historic building, a fragment of the Huei Tzompantli was found, a building where the skulls of sacrificed people were placed.

Located at number 16 on República de Guatemala Street, the remains of the north side of the Ball Court were found.

This museum contains the remains of a Mexica courtyard, the Telpochcalli, two viceregal walls, and a staircase dating from the early 19th century.