Before canning was invented in the early 19th century, the most common way to preserve food was by using salt. That made places with large salt deposits important trade centers.
In Colombia, one such center was the colonial town of Zipaquira. One of its salt mines includes a unique underground structure called the Salt Cathedral.
Today it serves not only as a place for quiet reflection but is also an event space. This year it was transformed into a runway to host African Fashion Week.
Take a look at these bright, African designs in the subterranean sanctuary.