In brief
Delhi's Red Fort is a palace-fort complex enclosed by substantial red-sandstone walls. Its private apartments include pavilions connected by a continuous water channel.
Useful to know
Delhi's Red Fort is a palace-fort complex enclosed by substantial red-sandstone walls. Its private apartments include pavilions connected by a continuous water channel. [1]
Compare the heavy exterior boundary with the internal sequence of pavilions and water. The contrast shows why the word fort does not fully describe the spatial refinement of palace life within.
Sources
For further detail and to check the information: