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.

Casimirsborg, a historic estate dating back to 1380, features parts of its original castle in the cellar vaults. The current building, from 1829, boasts period details like the grand salon, the largest private hall in Tjust and northern Småland, and a unique neo-Gothic chapel. It houses a cultural museum in the old granary, showcasing exhibitions on agricultural history, the Bronze Age, and painted floors. The estate also holds significant Bronze Age remains, indicating its past as a regional power centre. With untouched Bronze Age environments, Casimirsborg offers popular guided tours combining lectures with visits to ancient graves and rock carvings.

Båtsmansgränd is a narrow alley located in Gamla Öster, the area above the harbour. Here, you'll find eight quaint, timber-framed boatmen's cottages, constructed in the 1740s. Their simple yet traditional design reflects the era's architectural style. Originally, they served as homes for the boatmen and their families, whom Västervik town was obliged to equip on behalf of the Crown. In the first half of the 20th century, the cottages housed members of the citizens' fire brigade. In the 1970s, these now heritage-listed cottages were converted into a hostel, available for rent in the summer.