Madrid is home to some wonderful examples of cast-iron architecture. Much of the architecture can also be found in the most popular park. Here is also the Glass Palace was originally built in 1887 as a greenhouse to showcase flora and fauna as part of an exhibition on the Philippines, then a Spanish colony. Today, it is owned by the Reina Sofía Museum, which uses it all year round as a venue for hosting temporary exhibitions. Close by, you can find a penguin stone. It is when you find the small cave life opening that you will also find the penguin stone.
Last known location – 40.4134960N, 3.6813191W
