Hohenheim Palace was built in 1782 by Duke Karl Eugen of Württemberg. Today it is the site of Stuttgart's oldest university, the University of Hohenheim.
After the duke had acquired the former manor of the Bombast von Hohenheim family, minor nobility - with Theophrastus von Hohenheim called Paracelsus as its most notable member - in 1768, he gave it to his mistress Franziska Leutrum von Ertingen. From 1772 Karl Eugen had the manor house rebuilt as a water castle surrounded by an extended English garden featuring several midget replicas of historic buildings, an arboretum and numerous exotic plants. The construction of the present-day palace started in 1782 but discontinued with the duke's death in 1793.
In 1818 King William I of Württemberg established an agricultural school at Hohenheim, the predecessor of today's university. Today the gardens comprise the Landesarboretum Baden-Württemberg and the Botanischer Garten der Universität Hohenheim.
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.