When Västervik was founded at its current location in 1433 by Eric of Pomerania, the inhabitants were granted four tax-free years, the first of which was to build a church. Services were held here for nearly 500 years, with the last high mass on the Feast of Christ the King (Domssöndagen) in 1905. The new church, St Peter's, was consecrated on the first Advent of the same year. Since then, St Gertrud's was used for various purposes, including for grain storage during the First World War. Eventually, the idea to restore the church as a place of worship emerged, and St Gertrud's was re-consecrated on 18th June 1933. The church's original tower, destroyed by lightning during a service in 1762, was replaced in the 1780s by the current one, designed by the renowned architect Carl-Fredrik Adelcratz. Among the church's many valuable artefacts is a Wistenius organ from 1743, considered one of Sweden's most precious organs.

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.

Kauai Museum's mission is to inspire and promote respect for the indigenous and immigrant people of Kauai and Niihau. Kauai Museum's exhibits include "The Story of Kauai," which includes the Juliet Rice Wichman Heritage, and an Oriental Art Gallery.

In addition to the Easter- and Summer Festivals, Salzburg has also featured the Whitsun Festival since 1973. In this case, Herbert von Karajan’s original idea was to give those people who had not been able to obtain tickets for the Easter Festival an opportunity to listen to acclaimed international orchestras between Whit Saturday and Whit Monday.