Visiting the zoo like you don't know it

Prague Zoo is among the ten best zoos in the world. Not surprising, but thinking that you would only see animals would be a major mistake.
Right on its website, I discovered before my visit that in addition to enclosures and pavilions with the most diverse animals, you can see a plague column, visit an anti-aircraft shelter from the Second World War, or climb the Obora observation tower at your own risk. AND…