Not far from Piešťany stands the castle Tematín. The first walls of this construction were built around 1250, and it has been dilapidating into ruins since 1710.
Tematín is located in the mountains of Považský Inovec. Volunteers from citizens’ association Hrad Tematín have been trying to preserve it since 2007.
Castle Tematín is accessible every day from 8:00 to 18:00. Admission is €1. It is accessible from the surrounding villages of Bezovec, Lúka and Hrádok.

Volunteering to preserve Slovakia (Spectacular Slovakia - travel guide)