What has the author Ciriaco written?

Ciriaco de' Pizzecolli, also known as Cyriacus of Ancona (1391–1455), was an Italian humanist, scholar, merchant and antiquary, who left a considerable body of writings about ruins and antiquities in various parts of Italy, Eastern Mediterranean lands and the near East, where he travelled throughout his lifetime.

Pizzecolli's writings can be summarized in four general categories:

Commentaries on ancient buildings and monuments, especially those of ancient Rome, but also including Greek and Roman ruins in the provinces both Western and Eastern.

Accounts of his travels. Many of his travel accounts are interwoven with descriptions of antiquities. His travel itineraries can be followed through the Peloponnesus, Crete, Rhodes and the Levant, to Egypt, and up the Nile as far as Thebes. In Greece, he made the earliest recorded ascent to the top of Mount Olympus.

Epistles and invectives against the neglect and destruction of ancient monuments. One of the earliest European calls for architectural preservation.

Epigrams and verse epitaphs. Some of these are inscribed on ancient buildings and works of art he observed.

Many of his writings were published as early as the sixteenth century, and his account of the Peloponnesus (Peloponnesiaca), published in the seventeenth century, is now thought of as the work's chief historical value. Much of his work remains in manuscript form.