London is known for its grand museums, historic streets and sprawling parks. But high above the city streets, tucked inside one of its most striking Brutalist landmarks, lies an unexpected tropical escape.

The Barbican Conservatory offers visitors a chance to step from the concrete landscape of central London into a lush world of palms, vines, exotic plants and humid tropical greenery. Home to around 800 species, it is one of the city's more unusual urban attractions — and a reminder that a garden does not always need open skies.

Set against the distinctive concrete architecture of the Barbican, the conservatory creates an almost surreal contrast. Towering plants grow beneath the glass roof, while winding paths lead visitors through different pockets of greenery. Among its collection are rare and threatened species, making the space as much a botanical experience as an architectural one.

The conservatory's unusual setting is part of its charm. Visitors can spend the morning exploring London's streets before finding themselves surrounded by tropical foliage without ever leaving the city centre.

That experience is set to change temporarily, however, as the conservatory prepares for major renovation and is scheduled to close at the end of the year.

Before the closure, the venue offered plant enthusiasts a rather unusual way to take a piece of the conservatory home. On September 13, hundreds of carefully selected visitors were allowed to adopt cuttings propagated from plants growing inside the conservatory.

Around 500 cuttings were available, including Swiss cheese plants, spider plants, arrowhead vines and purple heart, a striking species native to Mexico.

The adoption came with its own little ritual. Prospective plant parents were asked to explain, or even draw, where their new plant would live. They were encouraged to give it a name and find its parent plant somewhere inside the conservatory.

Those who were successful also received care cards explaining the plant's requirements for water, humidity and light.

For travellers, the Barbican Conservatory offers something different from the usual London itinerary: architecture, urban history and a botanical escape in one destination. And while its current renovation means visitors will eventually have to wait for its return, the plants that found new homes will carry a small piece of this unusual London garden with them.