Take a tour of Bedzin Castle in Poland -- part of the World's Greatest Attractions travel video series by GeoBeats.

The remarkable Bedzin Castle in southern Poland stands strong and imposing against the city of Bedzin.

The first building to stand on this defensive site was erected in the 11th century.

This structure was replaced in the 14th century by the present day austere stone fortress.

The castle was originally an integral stronghold for the Kingdom of Poland.

When it was first constructed, the castle was attached to the surrounding city walls, some remnants of which still stand.

Bedzin Castle still remains as a reminder of an era rife with invasion and military threats.