If you want to visit the oldest zoo in the world that has been continuously operating since 1752, head to the incredible Tiergarten Schönbrunn of Vienna. Also known as the Vienna Zoo, this historic institution is found within the beautiful grounds of the ever-popular Schönbrunn Palace. Initially created as the imperial menagerie, Tiergarten Schönbrunn is now focused on conservation and education. Like its grand surroundings, the zoo still uses several elegant Baroque buildings, making this quite a beautiful zoo to visit. Among the different animals you can see here in Vienna are oriental small-clawed otters, arctic wolves, elephants, and Siberian tigers.