Living high: Trinity Tower, Paris La Défense

Located in the futuristic business district La Defense of Paris, Trinity is a 32-storey office tower, built ex nihilo on a concrete slab poured above a seven-lane roadway as a major feat of civil engineering. Designed by Paris-based Cro&Co Architecture, it provides 3,500 square metres of landscaped public space and links the previously disconnected neighbourhoods within La Defense.