Heroon
Heroon was anU-shaped building with an open Ionic upper story built in 2 century AD. A heroon, also called heroum, was a shrine dedicated to an ancient Greek or Roman hero and used for the commemoration or cult worship of the hero. It was often erected over his supposed tomb or cenotaph. The gable and frieze had reliefs depicting Androclus killing a wild boar,the fo undation story of Ephesus. The building is thought to have been a monument dedicated to Androclus
The Romans and the Greeks practised an extensive cult of heroes. Heroes played a central role in the life of a polis, giving the city a shared focus for its identity.

The cult typically centred around the heroon in which the hero's bones were usually believed to be contained. In a sense, the hero was considered still to be alive; he was offered meals and was imagined to be sharing feasts. His allegiance was seen as vitally important to the continued well-being of the city.

According to the records of Greek literature Cimon of Athens avenged the death of the legendary hero Theseus in 469 BC, finding a set of bones allegedly belonging to the hero and returning with them in triumph to Athens. According to Herodotus records the Spartans raided the heroon of the city of Tegea, stealing the bones of Orestes. This was regarded as changing the hero's allegiance from Tegea to Sparta, ensuring that the Spartans could defeat the Tegeans as foretold by the Oracle of Delphi.
Many examples of heroa can be found around the tombs of Mycenaean Greece and in or near the sacred areas of a number of Greek cities around the Mediterranean. A well-preserved example, the Tomb of Theron, can be found at Agrigento in Sicily. Another notable one, at Vergina in Greek Macedonia, is thought to have been dedicated to the worship of the family of Alexander the Great and may have housed the cult statue of Alexander's father, Philip II of Macedon.

A Roman heroon from the Augustan period is situated in the ancient city of Sagalassos in what is now Turkey. Another well-known heroon is the Library of Celsus in Ephesus, Turkey built to honor a Roman senator, Tiberius Julius Celsus Polemaeanus, a consul and proconsul of Asia from 92 to 107 and governor of Asia.