REMOVE

1. Round buildings
2. ARUP

WHAT

1. Architecture -- 1900-2000 (2)
2. Architecture -- England - … (2)
3. Circular buildings (2)
4. Concrete construction (2)
5. Hotels -- England -- Lond … (2)

WHERE

1. ENGLAND, UK (2)
2. London (2)

WHO

1. R. SEIFERT & PARTNERS (2)
2. SEIFERT, Richard (2)

WHEN

1. 1973 (2)