More than 50 years ago, my father would take me to The Vivarium, or small reptile house, at the Jardin des Plantes in Paris. Little kids still love it, especially little boys. All those snakes and toads and creepy insects behind glass. This is a picture I took today of the worn steps at the entrance.
For more, see the several Jardin des Plantes entries on James Dickey: Deep Deliverance