REMOVE

1. Prisons

WHAT

1. Architecture -- 1600-1700 (1)
2. Architecture -- 1900-2000 (8)
3. Architecture -- England (1)
4. Architecture -- South Afr … (8)
5. Art, Italian -- 18th cent … (2)
6. Bridges, Arched (1)
7. Camp buildings (4)
8. Concentration camp buildi … (8)
9. Dark tourism (17)
10. Death tourism (1)
11. Death tourism ; Tourist b … (7)
12. Etching (2)
13. Gardens (1)
14. Heritage tourism -- Germa … (7)
15. Heritage tourism -- Polan … (1)
16. Heritage tourism -- South … (9)
17. Holocaust, Jewish (1939-1 … (8)
18. Mandela, Nelson, 1918- (4)
19. Memorials -- Germany (3)
20. Tourist attractions (6)
21. Tourists (7)
22. Tourists -- Behaviour (2)
23. Wooden-frame buildings (1)
24. World War, 1939-1945 -- C … (8)

WHERE

1. Robben Island, Western Ca … (9)
2. SOUTH AFRICA (9)
3. Dachau, Bavaria (7)
4. GERMANY (7)
5. Special Collection, Sheff … (2)

WHO

1. not known (18)
2. PIRANESI, Giovanni Battis … (2)

WHEN

1. 1997 (9)
2. 1933 (7)
3. 1760 (2)
4. 1940 (1)