Festung Peitz, Military fortress and museum in Peitz, Germany.

Festung Peitz is a massive military fortress in Brandenburg with a prominent central tower and thick brick walls spanning multiple levels. The structure combines Italian brickwork techniques with Dutch earthen fortification methods in its distinctive design.

The fortress began construction in 1559 under Margrave Johann of Küstrin to protect Brandenburg's isolated territories. The fortification system was designed following the most advanced military knowledge of the Renaissance period.

The fortress exhibits regional military building traditions through displays of historical weapons and documents spanning several centuries. Visitors learn about the role this structure played in defending the territory during its active years.

The only surviving above-ground structure is the roughly 36-metre Dicker Turm, the oldest building in the Peitz region; the rest of the former fortress area lies beneath today's old town. Visitors reach the tower on foot through the old town lanes, and the site is a museum.

The only surviving above-ground structure is the Dicker Turm, a tower about 36 metres high and the oldest building in the Peitz region. The rest of the fortress area now lies beneath the present old town, so the tower is the one visible remnant of the whole complex.