The tubular Formation series temporarily filled the entrance and garden patio of the performing arts building in the Greek capital.
The installation coincided with this year's Art Athina – an annual international contemporary art fair, which ran from 20-24 June 2018.
Made of thick tubes of steel, powder-coated blue to contrast pale tiled flooring, the pieces come in a range of shapes for visitors to sit on in different ways.
The simple-shaped pieces each have a different form, ranging from a simple column, to a donut-shapeand an upside-down T.
Another appears to grow out of the ground in a curve that then loops back down again, while one could be the outline of an armchair design, featuring a curved back support.
"Various unique, curvy-shaped elements of powder-coated steel form an ambiguous seating arrangement in the form of scattered freestanding objects," said Objects of Common Interest in a statement.
"Each element carries its own balancing expression, yet they are all connected by creating common space through their individuality," continued the studio.
Also in the collection is a U-shaped design elevated slightly above the ground on a thick pillar, two benches – one which is straight and one which is curved – and a column with an attachment that bends to the floor.
Formation forms part of a growing trend for tubular furniture designs. New York design studio Jumbo recently created a chair and lamps from curved tubes of steel, while Eindhoven-based designer Lucas Muñoz made a bulbous chair from industrial steel ventilation pipes.
Objects of Common Interest is a design studio founded by New York- and Thessaloniki-based Eleni Petaloti and Leonidas Trampoukis, who also run architecture practice LOT. Other projects projects by the team include a series of homeware based on classical geometries and experimental furniture that pairs glass blocks with glossy colourful laminates.