Emperor Hadrian's resting place visited

Walking around Castel Sant'Angelo was the highlight of our last day in Rome. Going around the cylindrical structure, up and down the stairs and into the central chamber required strong legs and comfy footwear, beware! :-)
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I've been trying now to add some pictures, but they got stuck.  Will try again.

As you can see, only one successfully landed here so far. My camera shot a pigeon waiting for a nibble above cafe tables beneath the angel atop St Angel Castle. The power of wings!;-)

Here you can see another angel, in the lower court, near the papal apartments, as at one time the mausoleum was adapted to function as a pope's residence.

A special passage way was constructed atop the high wall to link the castle with the Vatican. It proved useful at the times of danger allowing the pope to escape unseen and get refuge at the stronghold.

Here you can compare the original walls with the later outer ones: