REMOVE

1. Greenhouses
2. Glass -- In architecture
3. ENGLAND, UK

WHAT

1. Conservatories (9)
2. Gardens -- England -- Lon … (6)
3. Kew Gardens (London) (6)

WHERE

1. London (6)
2. Chatsworth House, Derbysh … (3)
3. Sheffield, South Yorkshir … (1)

WHO

1. BURTON, Decimus (5)
2. TURNER, Richard (5)
3. PAXTON, Joseph (3)
4. CHAMBERS, William (1)
5. FULLARD, George (1)

WHEN

1. 1987 (5)
2. 1761 (1)
3. 1848 (1)
4. 1957 (1)