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Ljubljana’s largest park covers almost two square miles. Both the original 1813 designer (French engineer J. Blanchard) and the later 1933 designer (architect Jože Plečnik) endowed the park with pleasant details; stroll the lovely chestnut-tree-lined promenades, sit by the 19th-century fish pond, or take in a concert or sporting event at the Dvorana Tivoli arena (Celovška cesta 25).