The Biopark, or the Zoo Garden, is a fraction of the vast park called Villa Borghese, the second largest green area o Rome. The zoo garden was established a century ago and a decade ago was reinvented as a natural reservation with as little fences as securely possible. By a clever system of ditches and artificial mountain rocks even the most dangerous animals like tigers and lions can be observed by humans without any bars. The bears can also be seen splashing in water or sunbathing through several secured glass windows. More calm animals like elephants, giraffes, zebras or hippopotamuses can also be seen from a very close distance. The over a thousand animals of over two hundred species are divided into thematic areas for: reptiles, water animals like sea lions, felines, wolves, apes, birds such as flamingo, parrots or vultures and many others.