REMOVE

1. Glass -- In architecture
2. Greenhouses

WHAT

1. Conservatories (14)
2. Gardens -- England -- Lon … (6)
3. Kew Gardens (London) (6)

WHERE

1. ENGLAND, UK (10)
2. London (6)
3. Glasgow (5)
4. SCOTLAND, UK (5)
5. Chatsworth House, Derbysh … (3)

WHO

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

WHEN

1. 1872 (5)
2. 1987 (5)
3. 1761 (1)
4. 1848 (1)
5. 1957 (1)