REMOVE

1. Architecture -- 2000-2100
2. Elevators

WHAT

1. Glass -- In architecture (9)
2. Arches (8)
3. Architecture -- Belgium (8)

WHERE

1. BELGIUM (8)
2. Liège, Liège (8)
3. ENGLAND, UK (5)
4. London (2)
5. Wakefield, West Yorkshire (2)

WHO

1. CALATRAVA, Santiago (8)
2. A.B.K. Architects (2)
3. BURO HAPPOLD (2)
4. CHIPPERFIELD, David (2)
5. SIMPSON, Ian (1)

WHEN

1. 2009 (8)
2. 2005 (2)
3. 2011 (2)
4. 2002 (1)