Fort Albert is a tower fort nestling under the cliffs south-west of Fort Victoria on the Isle of Wight. It was one of the Royal Commission forts built in the 19th Century as part of Lord Palmerston's defences against the possibility of a French attack from Napoleon III. Designed to defend the Needles Passage, it was completed in 1856, after 4 years of construction, but like the American Third System forts it resembles in miniature, it would have suffered badly from rifled gunfire, so the Royal Commission enhanced it with batteries on the cliffs above. Even so, with the introduction of armoured ships, the fort became obsolete by 1858. In 1886 it was selected as one of the UK locations for the Brennan torpedo. After this, only small guns were mounted on the fort. It was closed to military use in 1957.
The fort is in private ownership of harbour developments and has been converted into private flats. There is no public access, not even to the cliff tops which overlook it. It is most easily viewed from the sea, or from Hurst Castle. The battery above is part of a chalet estate at Brambles Chine, another location to view the fort which is passed through by runners on The Needles annual Half Marathon.
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.