Säfsnäs Homestead Park, often considered Fredriksberg's best-kept secret, is a collection of historic buildings from the Säfsnäs region. These include a smokehouse, barn, pole shed and water mill, with 'Rik-Mats' cabin highlighting the early 1600s svedjefinnar era, associated with the practice of slash-and-burn agriculture. The park also commemorates the ironworks period from the 1720s to the early 1900s, featuring a piece of rail from the narrow-gauge railway. It showcases the 20th century’s sawmill and paper mill history, including a simple mill used for paper production. The park is a starting point for nature trails, including a 3.3 km route around Mellansjön, and hosts various activities like heritage walks and midsummer celebrations.

The Athens War Museum is run by the Greek Armed Forces. The exhibitions cover the history of war in all ages, from Mycenaean conflicts all the way to the present day. Great displays of battle grounds, weapons, uniforms, heroic figures and personal items.

The Old Daphni Monastery was originally founded and built at the end of the 6th century, to the west of today's Athens. Surrounded by defence mechanisms, the monastery was extended with additional construction over time. The interior holds detailed mosaics and the complex is now a designated UNESCO World Heritage Site, which is worth the little detour by public transport.