This 1869 brick and tiled Tea House was built for Queen Victoria in the southeastern corner of the garden at Frogmore in Windsor. That is wisteria growing on the tea house. It's beautiful when in bloom!
Opposite the Tea House Queen Victoria erected a granite drinking fountain, inscribed 'In affectionate remembrance of John Brown, Queen Victoria's devoted personal attendant and friend, 1883'.
Here is a detailed photograph of the Tea House, where you can see the granite drinking fountain.