1.
Rome, Italy. On the Aventine Hill, there is a famous keyhole set into a door that offers a perfectly framed view of an iconic monument. What can be seen through it?
2.
Paris, France. Beneath the bustling streets of the “City of Light,” there is a historical museum located within operational tunnels dedicated to the city’s water management system. What is it called?
3.
London, United Kingdom. Far from the city center stands a remarkable Hindu temple carved entirely from Carrara marble and Bulgarian limestone, assembled like a giant puzzle. Which one is it?
