Box 43

At first glance, the Centro de Artesanato Mestre Dezinho, in downtown Teresina, looks exactly like what it is meant to be: a lively cultural space filled with local art, handicrafts, paintings, and souvenirs from Piauí. Tourists wander between colorful stalls, artisans chat with visitors, and nothing seems out of the ordinary.

Until you reach Box 43.

Hidden beneath this small shop is a trapdoor that leads to one of the most well-preserved remnants of Brazil’s military dictatorship: a former underground detention cell, sealed away in plain sight beneath a craft market.

The building itself once served as the headquarters of the Military Police of Piauí, a role it held until the late 1970s. When it was converted into a cultural center in the 1980s, most traces of its previous life disappeared; except for this basement, which was never dismantled or reconstructed. What remains is real, original, and unsettling.

Pulling open the heavy metal trapdoor reveals a steep descent down a narrow staircase. The steps are short and awkward, forcing visitors to descend carefully. At the bottom lies a cramped, windowless room measuring roughly 7 by 2 meters. The walls are lined with old ceramic tiles that reflect sound sharply, amplifying echoes and creating an oppressive acoustic effect. Light and air enter only through the opening above.

This space functioned as a holding cell during the years of political repression, roughly between 1964 and 1978. It was used to detain political prisoners: Teachers, students, intellectuals, clergy, and ordinary citizens accused of subversion or association with forbidden ideas.

Physical traces remain. Scratches and impact marks scar the tiles. Dark stains are still visible on the walls and stairs. On the ceiling, the metal support for a pau-de-arara (a notorious torture device) can still be seen. On one wall, high-mounted metal rings mark where prisoners were restrained for long periods, forced to stand under extreme physical stress.

There are no drains in the floor. No signs of beds. No ventilation system. The design itself reinforces isolation, discomfort, and disorientation, an architectural reminder of how spaces were once engineered to strip people of dignity.

Today, this hidden basement serves a different purpose: memory. It stands as a quiet but powerful reminder of a chapter in Brazilian history that is easy to forget when walking through a cheerful marketplace above. The contrast between handmade art and the dark space below makes the experience all the more striking.

Visiting this site is not about spectacle. It is about preserving a physical trace of the past, ensuring that what happened beneath these floors is neither erased nor ignored.