Burg Nanstein is a castle in Landstuhl, Rhineland-Palatinate, Germany.

It was built around the year 1162 after Holy Roman Emperor Frederick I demanded its construction as additional defense for the Palatinate.

The town of Landstuhl is more than 2,500 years old. It was originally a settlement sitting at two
main roads. One was leading from Metz in the west to Worms in the east; the other one went from
Trier in the north to Strassburg in the south.
The first traces of continuous settling are graves from the late Celtic period, around 500 years before Christ.