A piece of covent Garden in Borough Market.
Originally, the Floral Hall was built in 1858-9 by architect E.M. Barry as a multi-purpose space adjoining the Royal Opera House, intended initially as a flower market. It was opened on March 7, 1860, with much fanfare, hosting receptions, balls, concerts, and operatic performances. However, its use as a flower market was short-lived because a rival flower market opened nearby, and it later morphed into a foreign fruit market and other uses including housing props for the theatre. It suffered fires and was eventually restored and converted into a bar, restaurant, and flexible event space, becoming an integral part of the Royal Opera House operations.
In 2004, the Floral Hall’s distinctive cast-iron and glass Southern Portico was relocated and re-erected at Borough Market, saved from demolition when the Royal Opera House was reconstructed in the 1990s. This portico now serves as a grand entrance to Borough Market.
 
Interesting facts....
The market istelsf is at least 1000 years old but coudl even be Roman.