Half the site is covered with beautiful bushes and trees, and the other half is exposed to the harsh Andalusian sun.
There are brilliant mosaics, including one with the gods of the seven days of the week.
Remains of houses, baths, and other civic buildings are dotted around. There is even a lake, with wildlife, wildfowls and even swimming turtles (I saw several) which was created to prevent flooding of the site.
The whole thing is inspiring. And if you get the 9:30 bus from Sevilla, as I did, a three-hour trip around the site (which I found to be about the right amount of time) leaves you exiting and popping across the road just in time for the 1pm lunch opening time of a great steak house across the road!