This definition appears very rarely
See other definitions of UB
Samples in periodicals archive:
The Union Buildings form the official seat of the South African government and also house the offices of the President of South Africa
The Union Buildings (Afrikaans: Die Uniegebou) form the official seat of the South African government and also house the offices of the president of South Africa.
Union Buildings Virtual Tour by 360 South Africa. Entrance to the building itself is prohibited for security reasons, since it is the site of the Presidential Offices.
Union Buildings et statue du général Louis Botha Présentation Type structure architecturale (d) + Architecte Herbert Baker Construction 1909-1913 Destination...
The Union Buildings are easily the most famous building in South Africa. No visit to Pretoria can be complete without a visit to this beautiful landmark.
Wits University students left for Pretoria for a meeting and march at the Union Buildings. Photo: Dumisani Dube/The Star