Edinburgh castle is perched at the top of Castle Rock and is impressive from all sides. This site gives you a good view of the elevated location along with some other good views of the Castle - as does these two sites: Site 1 and Site 2. I found this site to have the best all-around set of pictures of the castle.
As early as the 11th-century the buildings atop Castle Rock were favoured as a residence by royalty, in particular Margaret, the Queen of Malcolm III and her sons. She died in the castle.
The castle alternated between Scottish and English forces and in 1313 suffered demolition by the Scots. A popular legend is about a daring raid led by Sir William Douglas, the legendary "Knight of Liddesdale, in 1333. In the late 14th-century Bruce's son, David II, built a tower of which tere are no visible remains on the site of the Half Moon Battery. The infamous Black Dinner of 1440 resulted in the execution of the two young Douglas brothers in the presence of their 10-year-old sovereign, James II, in an attempt to quell Douglas power. James II was born, crowned, married and buried in Edinburgh but it was his son James III who formally recognized the city as his capital.
This site will give you a good perspective of the historic background a well as the modern activities in the castle.
Their are many things to see at the Castle like
· The Garrison which lives there
· The Esplanande, the approach to the castle
· The Room where Mary Queen of Scots gave Birth to her Son.
· The Room where the honours of Scotland (Their Crown Jewels) are displayed.
· The 16th century great hall containing a splendid collection of Arms and Armour.
· The Casements, great vaulted chambers beneath the hall some of which housed prisoners.
The most famous event is the Edinburgh Tattoo which happens every summer.
The castle is only one of Edinburgh attractions city and this site has a wonderful cyber tour.