We sort-of, kinda stumbled onto the Royal Palace. We were behind a small tour group that walked through the gardens beside a church.
flowers in the church gardens
When we rounded the church wall, there was another huge plaza and many people milling around.
the northern facade of The Royal Palace
A comprehensive renovation of the façade began in 2011, to repair weather damaged parts made from sandstone. The repairs are estimated to cost approximately 500 million crowns (about US$77 million) over a period of 22 years. - Wikipedia
That would be why the side we saw facing the plaza was enclosed in plastic and very unassuming.
Welcome to one of Europe's largest and most dynamic palaces. The Royal Palace of Stockholm is His Majesty The King's official residence and is also the setting for most of the monarchy's official receptions. Much of the palace is open to the public year-round. - The Royal Palace
a female guard moving to her post
a male guard at his post
The Royal Guards have guarded the palace and the royal family since 1523. - Wikipedia
Although the palace was open for tours, we did not check the ticket price as we only had so much time to see all we wanted to see.
inside the ticket area
The palace is built in baroque style by the architect Nicodemus Tessin and is formed as a Roman palace. The palace has more than 600 rooms divided between eleven floors with a state apartment facing the city and smaller living rooms facing the inner courtyard. - The Royal Palace
another view in the ticket area
The palace contains many interesting things to see. In addition to the Royal Apartments there are three museums steeped in regal history: the Treasury with the regalia, the Tre Kronor Museum that portrays the palace's medieval history and Gustav III's Museum of Antiquities. The palace also houses the Royal Chapel. The changing of the guard and the Royal Gift Shop are particularly popular with visitors. - The Royal Palace
no identification on the statue
King Carl XVI Gustaf and Queen Silvia of Sweden
the eastern facade of The Royal Palace
The palace was designed by Nicodemus Tessin the Younger and erected on the same place as the medieval Tre Kronor Castle which was destroyed in a fire on 7 May 1697.
As of 2009 the interior of the palace consists of 1,430 rooms of which 660 have windows. The palace contains apartments for the Royal families, and the offices of the Royal Court of Sweden, a place of work for approximately 200 employees. (Among other government offices.) - Wikipedia
There were many servicemen and women in the area the day we visited. They were not there in any official capacity, but seemed to be tourists, like us.
street gate to the western facade of The Royal Palace
the western facade of the palace
this outer courtyard is for the changing of the guards ceremony
the southern facade of the palace
pansies along the street on the southern side of the palace
bellis perennis or common daisy
trash container in the area of the palace
Stockholm Cathedral
Storkyrkan (Swedish: 'The Great Church'), also called Stockholms domkyrka (Stockholm Cathedral) and Sankt Nikolai kyrka (Church of Saint Nicholas), is the oldest church in Stockholm. Storkyrkan lies in the centre of Stockholm in Gamla stan, between Stockholm Palace and Stortorget, the old main square of Stockholm. - Wikipedia
It was consecrated to Saint Nicholas in 1306 but construction of the church probably started in the 13th century. Inside, Storkyrkan still maintains much of its late medieval appearance in the form of a hall church with a vaulted ceiling supported by brick pillars. Storkyrkan was for a long time the only parish church of Stockholm, and from an early date it was connected with the Swedish royal family. It has been the scene of historical events on numerous occasions, and was used as a coronation church for centuries. - Wikipedia

Stockholm’s medieval Cathedral, built in 1279, houses unique objects such as the St George and the Dragon sculpture (1489), the legendary Vädersoltavlan (1535) and Lena Lervik’s sculpture ”Joseph and Mary” (2002).
Since 1527, the Cathedral has been a Lutheran church. A wide range of religious services and concerts are held. The wedding of T.R.H. Crown Princess Victoria and Prince Daniel took place on Saturday, June 19, 2010, in Stockholm Cathedral. - Stockholm Cathedral (image taken from the web site)
We did not go into the church, but now I wish we had.
Next: Food in Stockholm