Located in a tuff cave, Cimitero Delle Fontanelle, also known as the Valley of Death, is an underground cemetery containing the remnants of more than 15,000 Napolitains. A visit to Fontanelle Cemetery offers a somewhat unique — and possibly morbid — experience.

This educational museum tells the fascinating story of silk - from silk worms to finished product (some exquisite exhibits are on display), with demonstration of traditional weaving techniques. Admission is free, and explanations in English are provided.

In the booklet 'Dagje Heusden' there are two self-guided city walks including a map of the fortress. The booklet gives you information about the history of the fortress and the historic buildings that you will pass along the way. The two routes can be walked independently. Duration: 1 - 1.5 hours. The 'Through The City' (Door de Stad) walk starts at the Visitor Centre, taking you past the historic Catharijnekerk, by national monuments and beautiful old buildings in the town, alongside windmills and over the towns ramparts. The second walk, 'Fortifications' (Vestingwerken) also starts at the Visitor Centre and goes along the bastions and fortifications, past the historic cannons, the windmills and the marinas. Every Sunday afternoon you have the option to go on a guided tour with a “City Guide”. The guide will tell you about the town’s history, the fortifications, about the restoration of the city and the striking buildings. The start is always at 2:30pm at the Visitor Centre at Pelsestraat 17 in Heusden, and takes around 75 minutes.