Blogger Tony Dunnell of Tarapoto Life, has written a fascinating article about Lamas Castle, a castle located 22km from Tarapoto.  Tarapoto is a city located in the northern department of San Martin.  The castle itself is fairly impressive and it seems that Peru has its own personal collection of castles.  Lamas Castle is a particularly interesting castle since it was build on a hill overlooking the town it was build near.  

For those interested the article can be found here: LINK