Pena perches above Sintra on a plateau about 450m (1,476 ft.) above sea level. Part of the fun of visiting the castle is the ride up the verdant, winding road through the Parque das Merendas.

The inspiration behind this castle in the sky was Ferdinand of Saxe-Coburg-Gotha, the husband of Maria II. Ferdinand called on a fellow German, Baron Eschwege, to help him build his fantasy. You can see a sculpture of the baron if you look out from the Pena toward a huge rock across the way. The palace's last royal occupant was Queen Amélia. One morning in 1910, she clearly saw that the monarchy in Portugal was ending. Having lost her husband and her soldier-son to an assassin 2 years before, she was determined not to lose her second son, Manuel II. Gathering her most precious possessions, she fled to Mafra, where her son waited. She did not see the Pena palace again until 1945, when she returned to Portugal under much more favorable conditions. Pena has remained much as Amélia left it, making it a rare record of European royal life in the halcyon days preceding World War I.

In the early 16th century, Manuel the Fortunate ordered a monastery for the Jerónimos monks built on these lofty grounds, and you can visit the preserved cloister and small oval chapel today.

Pena Park was designed and planted for more than 4 years, beginning in 1846. Ferdinand was the force behind the landscaping. He built one of the most spectacular parks in Portugal, known for the scope of its shrub and tree life. Admission to the park is included in the price of a ticket for entrance to the palace. A little carriage service inside the gate of the palace will take you up the steep hill to the palace for 2€ each way.