Barbican Conservatory

The Barbican Conservatory was built in the 1980s to soften the Brutalist architecture of the Barbican Centre and now holds a dense tropical collection, complete with resident fish and a small collection of finches, spread across a raised glasshouse most visitors never expect to find. Its scale and plant diversity draw comparisons to Kew, even if it's a fraction of the size, and free admission makes it an easy add-on to a visit to the Barbican's theatres or galleries. Limited opening hours keep it feeling uncrowded relative to its quality.