Tower Project B sounds like the sort of skyscraper name that Kim Jong-Il would have used, but in reality it's a 388 metre tall proposal located in Bogota, Columbia.
The intention of the scheme is to create a mixed-use supertall tower by a world-famous architect, and as such there are three competing designs. The first is from Murphy Jahn, with Foster + Partners, and Arquitectonica having also entered.
The architects are expected to design a proposal that offers approximately 70 floors, with LEED quality build specifications, and a number of mixed-use facilities including a new shopping mall, a luxury hotel, offices, a business club, and apartments.
Murphy Jahn has opted for a slender glazed blade with cross bracing, and a multi-coloured fašade on one face that contrasts with the neutral glazing elsewhere.
Foster + Partners has come up with the idea of proposing three different options that offer different mixed-use configurations with angled roof lines.
A pointy glass prism comes from the pens of Arquitectonica who have drawn up a slim triangular tower which would boast an enormous central atrium rising up much of the building.