Museo Nacional de Colombia.
"The National Museum is the oldest in the country and one of the oldest in the continent, built in 1823. It was known as the Panóptico (inspired by the Panopticon prison) and served as a prison until 1946. Its fortress architecture is built in stone and brick. The plant includes arches, domes and columns forming a sort of Greek cross over which 104 prison cells are distributed, with solid wall façade. In 1948, the building was adapted for National Museum and restored in 1975." (from Wikipedia)