Jardín Botánico Carlos Thays de la Ciudad Autónoma de Buenos Aires

A mouth ful in the title but that's the official name for the Botanical Garden of the city. It was founded in 1898 already and covers an area of almost 70,000 square meters. You find Roman, French and Oriental gardens. There are even plants which stood in the garden of Pliny the Younger from old times. There are also 5 winter houses in Art Nouveau style.

Only they have one problem. There is an enormous amount of cats there and they don't seem to be able to get rid of them.

For more info and images goto the website.