The Union Buildings are South Africa's seat of executive government, and the most architecturally significant building in Pretoria. Designed by Herbert Baker in a sandstone neo-classical style influenced by Cape Dutch and Edwardian architecture, they sit on Meintjieskop hill above the city, commanding panoramic views over Pretoria. The symmetrical complex of colonnades, domed towers, and terraced gardens is most impressive at distance.
The extensive amphitheatre gardens below the building are open to the public. A nine-metre bronze statue of Nelson Mandela stands in the south garden, arms raised in the gesture of victory from his inauguration day. The gardens themselves are well maintained and offer views across the Jacaranda City when the trees are in bloom (October–November). The building's interior is not open to the general public, but the grounds can be explored freely.