I want to know the answer to the following question:
Which landmark still remains from the Imperial Institue after Imperial's expansion?
All the background I'm provided with is that "It is situated in an area of South Kensington, known as Albertopolis, which has a high concentration of cultural and academic institutions, adjacent to the Natural History Museum, the Science Museum, the Victoria and Albert Museum, the Royal College of Music, the Royal College of Art, the Royal Geographical Society and the Royal Albert Hall.". Is that enough to answer the question?
Answer: no