Молодечненский замок, Medieval castle in Maladziečna, Belarus

Maladziečna Castle was a 14th–18th-century fortress on an island in the marshy right bank of the Usha. Builders laid a 120×80 m log platform on the bog and raised a 4 m gravel-and-sand terrace, edged by sand-clay ramparts up to 3.5 m high and 11 m wide, with wooden walls, towers and a gate behind them.

The fortress first appears in written records in 1388 when an important letter was signed within its walls. This document marks the earliest known reference to the settlement and established its role in regional politics.

Archaeological excavations showed that the stone church inside the castle yard measured 11 by 24 metres and was decorated with frescoes; it stood from the 16th to the 18th century. The castle's owners changed over time, among them the Zaslawski, Mstsislawski, Sanguszko, Kishka and Ogiński families.

The site is easily accessible by public transportation from Minsk, situated in the northern section of the district. Visitors should come prepared for outdoor walking as the remains are spread across an open area with minimal shelter.

The castle underwent a remarkable transformation in the 17th century when its original corner towers were replaced with Dutch-style defensive structures. This architectural change reflects shifting military engineering practices of the period.