Next up in our review of 2019, Daria Casalini picks out the year's 10 most impressive pavilions, including a floating circular staircase and a fibre-composite structure built by two robots.

Stone 27, USA, by Benjamin Langholz
Benjamin Langholz arranged huge stones in an ascending circle for a pavilion at this year's Burning Man in Black Rock City, Nevada.
A central pillar and three pairs of steel columns support the basalt stones, forming a "floating walk" designed to make visitors' experience "a moment of complete presence".
Find out more about Stone 27 ?

Serpentine Pavilion, UK, by Junya Ishigami
For this year's Serpentine Pavilion in London, Japanese architect Junya Ishigami designed a structure he describes as a "hill made out of rocks". Ishigami used 61 tonnes of Cumbrian slate to create a rocky canopy supported by 106 pin-ended columns. He arranged the columns randomly to give visitors the sense of being in a "forest".
Find out more about the Serpentine Pavilion ?

The Room for Archaeologists and Kids, Peru, by Studio Tom Emerson and Taller 5
Students from Studio Tom Emerson at ETH Zurich and Taller 5 at PUCP collaborated with architects Guillaume Othenin-Girard and Vincent Juillerat to build this pavilion on an archaeological site outside Lima.
Designed to provide shelter from the desert sun for archaeologists, the pavilion features earthen floors, bamboo cane walls and a woven white canopy.
Find out more about The Room ...