The Blue Grotto, Capri, Italy

On back:
CAPRI – Grotta Azzurra
Publishers: Trampetti & Migliaccio, Naples; c.1910

During Roman times, the grotto was used as the personal swimming hole of Emperor Tiberius as well as a marine temple. Tiberius moved from the Roman capital to the island of Capri in 27 AD. During Tiberius’ reign, the grotto was decorated with several statues as well as resting areas around the edge of the cave.

During the 18th century, the grotto was known to the locals as Gradola, after the nearby landing place of Gradola. It was avoided by sailors and islanders because it was said to be inhabited by witches and monsters. The grotto was then “rediscovered” by the public in 1826, with the visit of German writer August Kopisch and his friend Ernst Fries, who were taken to the grotto by local fisherman Angelo Ferraro.

The Blue Grotto is 60 meters long by 25 meters wide. The clear blue waters below the boat are 150 meters deep. The unearthly blue light effect is caused by the refraction of daylight through the above water cave opening and a larger submerged opening. The acoustics inside the grotto are famously beautiful. At the back of the main cave, three connecting branches lead to the Sala dei Nomi, or “room of names”, named after the graffiti signatures left by visitors over the centuries. Two more passages lead deeper into the island, before it becomes inaccessible. For many years it was thought that the fissures at the back of the cave may have been ancient stairways leading up to the Emperor’s pleasure palaces, but it now seems that these are merely natural passages which narrow and then end, no palace in sight.

Three statues of the sea gods Neptune and Triton were recovered from the grotto floor in 1964 (now on display at a museum in Anacapri), and seven statue bases were found in 2009. The Roman historian Pliny the Elder described the statues in the grotto as “playing on a shell” – the position of the now missing arms of the Triton statue, usually depicted with a conch shell, indicate that these were the statues that he saw in the 1st century AD. Four more statues may yet be hidden in the sandy depths.
Atlas Obscura

Roman baths, Bath, Somerset, England, UK

Bath. Roman Baths & Abbey

Caption on back:
Bath: Roman Baths and Abbey
Within a distance of a few yards are the Roman Baths, built about A.D. 55; the Abbey, erected in 1499; the King’s Bath of 17th and 18th century constructions, and the modern Bathing establishment containing the latest scientific appliances for the administration of the radioactive waters for the cure and relief of many complaints.

Official Website has a Walkthrough (photos) and a3D Model (3D walkthrough) under Discover

Roman bath before restoration, Bath

The Roman Baths, Bath
The hot springs of Bath are of great antiquity, and baths are said to have been erected as early as BC 860. Tradition tells that St. David and King Arthur visited the springs early in the sixth century, when the springs received the blessing of the church.

Not sure when the “restoration” was. Might be 1890s redevelopment/reopening of the site. The carved statues date from then (1894).

Circular Bath, Bath