Castle of Guarda (Keep)

Guarda, Portugal, Portugal

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Castle of Guarda's Keep, known as Torre de Menagem, is the prominent Gothic pentagonal tower dominating the 12th-century medieval fortress in Guarda city, Portugal's highest at 1,056 meters atop Serra da Estrela's northeastern flank.

Initiated under Afonso II around 1290 alongside northern walls near Porta d'El Rei, it features two original floors accessed via a raised straight-lintel door, later reformed by Dinis, Fernando I, and João I into an irregular polygonal plan blending Romanesque and Gothic elements with a citadel alcáçova and almedina enclosure of seven straight-arch gates and towers.

Overlooking Côa and Mondego valleys as a second-line Beira Alta border defense, its granite structure endured until 19th-century dismantling, now a classified national monument offering panoramic views.