A Ghanaian artist transforms abandoned bottle tops into metal mosaics.

A furiously gleaming sheet of golden light cascading from the ceiling to the floor immediately dazzles everyone who steps into Barakat Contemporary in downtown Seoul.

Is it a painting with an eight-meter-long brilliant expanse? Is that a tapestry? A sculpture? Definitely worth a second look.

Only then will you notice that the gleaming wall hanging is made up of hundreds of multicolored metal fragments that have been woven t....