Altenstein Palace, Renaissance revival palace in Bad Liebenstein, Germany.

Altenstein Palace is a residence built in the Renaissance Revival style in Bad Liebenstein. The facade shows curved windows, round bay windows, and chimneys topped with obelisks, giving the building its characteristic appearance.

A fire set by an arsonist in April 1733 destroyed the medieval castle on the rock. From 1736 Duke Anton Ulrich of Saxe-Meiningen had a Baroque country house built there to plans by the Italian architect Alessandro Rossini, on the razed castle site. From 1798 his son Georg I turned it into a summer residence, and in 1888 Georg II had Albert Neumeister remodel the Baroque core in the English Renaissance Revival style.

The name Altenstein comes from a medieval fortress that once stood on the rock above the valley. Visitors today can walk through the park and see how the duke used this place as a summer residence for musical evenings and social gatherings.

Access to the grounds is possible through several paths that wind through the landscape park. For visitors with limited mobility, some areas may be difficult to reach as the terrain is hilly and includes natural slopes.

The palace stands on a dolomite platform about 460 metres above sea level, and the park around it covers 160 hectares. Road works in 1799 exposed the Altenstein Cave, a 300-metre passage with a fast stream flowing through it. The cave was laid out as an underground landscape garden.