Columna Lactaria "Milk Column" was a landmark in ancient Rome in the Forum Holitorium
Some words have special historical significance, such as "guerrilla" (the word used by Napoleon's forces to describe the way the Spanish fought in the Peninsular War), or the term "fifth column" which as quinta columna was used by a Spanish Civil War general to label his covert supporters in Madrid as he laid siege to it.
In 1999, a Danish artist named Jens Galschiøt installed a statue known as the Columna de Infamia, or the Pillar of Shame, as a reminder of the massacre of members of Las Abejas that had occurred at Acteal.