The Casa Fuerte de la Cruceta was finished in 1773 for the purpose of housing cavalry units. The fortress was one of the westernmost defensive positions built in the 18th century by King Charles III of Spain to defend the area of Almería and the Cabo de Gata. It was originally intended to house soldiers who were tasked with guarding the areas between Torre García and Perdigal. The King approved plans for its construction in 1771 and works were completed in 1773. In 1778 the fort had a permanent garrison of 14 soldiers.
By 1830, the fort was abandoned by the army but in 1857, it was transferred to the control of the Carabineros. In 1941, the fort was garrisoned by the Guardia Civil.
The fortress was restored in 2005 and is accessible as a part of the waterfront of El Toyo.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.