Go to the Botanical Museum that features old photos of the park and shows the story of t he500 plant species variations that can be found in the park. There are 500 different plant species in the gardens, but to make you understand how dense and alive this park is, it hosts over 50,000 plants in total. Back when the city was fortified, this is the only place within Athens where people were allowed to stroll around freely. And this used to be King Otto’s backyard but now, of course, it belongs to the people. But it is because of the royalties that there is such a rich ecosystem, as they used to bring animals and plants from all over the world to ponder at.