Better modern art may be found in various other collections around town, but this private museum wins the gold star for the most interesting building: a restored 19th-century mansion (only one of four left on the Prado) with a glass roof and stained-glass panels designed by Gustave Eiffel. The museum’s eclectic collection housed over three floors is a mix of reasonable – but not mind-blowing – Bolivian and international work. You might catch an interesting temporary exhibition.