The Barbican Conservatory is the second largest conservatory in London, located at the Barbican Centre. It houses more than 2000 species of plants and trees, as well as terrapins and koi carp. The conservatory covers 23,000 square feet, and is located on top of the theatre's fly tower.
Admission to the conservatory is free but public opening times are very limited; currently only afternoons on Sundays and some Bank holiday Mondays. Opening days and times are given on the Barbican website. The conservatory can be hired for meetings and receptions.