Convento de San Antonio da Padua

To build their second-largest atrium in the world, 7,806 square meters trailing only the Vatican, Franciscan friars didn’t just level the Maya pyramid Ppap-Hol-Chac in 1549. They recycled it. Under Fray Diego de Landa’s direction, 6,000 Maya laborers dismantled their sacred temple stone by stone, then spent six months rebuilding those very stones into the monastery’s 75 arches and walls. Look closely under the arcades today: geometric Maya glyphs still mark the pilfered blocks, a mazelike reminder of what was erased to create what remains.

The convent that rose from that erasure became one of Mexico’s most magnetic pilgrimage sites, drawing Pope John Paul II not once but twice. When lightning struck in 1829 and flames consumed nearly everything, one statue survived untouched: Our Lady of Izamal, now Yucatán’s patron saint, her survival still unexplained. Today her frescoes are peeling and her walls are crumbling, preservationists racing against the same slow erosion that eventually claims every monument built to outlast time.

Izamal is a city of layers. The Maya built on bedrock. The Spanish built on the Maya. And somewhere in the walls, both are still there.