We just learned about Bellver Castle.
Another famous castle is Predjama Castle, built around 1200 AD in Slovenia.
This castle was built right into the mouth of a cave, so that it could be very strong against attacks.
Most of the castle is in front of the cave, but some of back walls of the castle are built right into the rock, and they are connected to the entrance to go back into the cave.
The people who created the castle even made secret cave exits that they could use to try and sneak food in and out when the castle was under attack.
Down underneath the castle are four more levels built into the caves!
It is one of the longest caves in Slovenia.
(from: wikipedia - predjama castle)
Kid Facts - Blast from the past: Michoacan
