Ottoman Heritage Trail: Istanbul to the Aegean

The Ottoman Heritage Trail moves from the heart of Istanbul — where Byzantine and Ottoman monuments stand within walking distance of each other — south along the Aegean coast to the ancient cities and thermal landscapes of western Anatolia. It is a route through one of the world’s longest-occupied urban corridors, where Roman, Byzantine, Seljuk and Ottoman layers accumulate on the same hillsides.

Istanbul alone justifies the journey. The city held the capital of two of history’s most consequential empires — the Byzantine (330–1453 CE) and the Ottoman (1453–1922 CE) — and the monuments of both survive in close proximity around the Sultanahmet district.

Stage 1 — Hagia Sophia (Istanbul)

Hagia Sophia was built in 537 CE as the cathedral of the Byzantine Empire and remained the largest church in the world for nearly a thousand years. Its main dome, 31 metres in diameter and 55 metres above the floor, appears to float on a ring of light — an effect produced by forty windows that make the supporting pendentives invisible from below.

In 1453 Sultan Mehmed II converted it to a mosque. In 1934 Atatürk secularised it as a museum; in 2020 it was reconverted to a functioning mosque. Visitors of all backgrounds are admitted outside prayer times. The interior retains both Byzantine mosaics and Ottoman calligraphic roundels — an unrepeatable architectural palimpsest.

Stage 2 — Blue Mosque (Istanbul)

The Blue Mosque was built between 1609 and 1616 by Sultan Ahmed I, directly across the hippodrome from Hagia Sophia. It takes its popular name from the 20,000 hand-painted Iznik tiles that line the interior, in fifty shades of blue.

It is the only mosque in Istanbul with six minarets. The prayer hall is open to non-Muslim visitors outside prayer times; the courtyard is always accessible.

Stage 3 — Topkapı Palace (Istanbul)

Topkapı Palace was the administrative and residential centre of the Ottoman Empire from the 15th to 19th centuries. Its organisation into four courts reflects a progressive restriction of access: the First Court was public, the Fourth Court essentially private to the sultan.

The Treasury holds the Topkapı Dagger and the Spoonmaker’s Diamond. The Harem section is accessible via separate tour. Views from the palace terrace over the Bosphorus are among the finest urban panoramas in Europe.

Stage 4 — Ephesus (Selçuk, Türkiye)

Ephesus at its height (2nd century CE) had a population of around 200,000 and was the capital of the Roman province of Asia. Its ruins — the Library of Celsus, the Great Theatre (capacity 25,000), the colonnaded Curetes Street — are among the best-preserved in the Mediterranean.

The site carries later layers too: the Basilica of St John (6th century CE), built by Emperor Justinian over what tradition holds to be the apostle’s tomb, and the Isa Bey Mosque (1374), one of the finest examples of Anatolian Seljuk architecture.

Stage 5 — Pamukkale (Türkiye)

Pamukkale — “Cotton Castle” in Turkish — is a thermal site where calcium-rich hot springs have built up over millennia into a cascade of white travertine terraces and natural pools. It has been a place of therapeutic bathing since the Roman period.

Above the travertine lies Hierapolis, a Greco-Roman spa city whose necropolis and well-preserved theatre speak to a long prosperity built on the thermal waters. The two sites are jointly UNESCO-listed and reward a full day.

Satellite Sites Coming Soon

The Basilica Cistern (Istanbul), Süleymaniye Mosque (Istanbul), Selimiye Mosque (Edirne), Safranbolu historic village, and the Green Mosque in Bursa are currently being processed by the CHO curation team and will be added to this itinerary as their place cards are completed.

Practical Notes

• Duration: 7–10 days for Istanbul plus the Aegean sites
• Best season: April–June and September–October; avoid August crowds on the Aegean coast
• Logistics: Istanbul has two international airports; fly to Izmir or take the overnight train for the Aegean section; Pamukkale is 4 hours by bus from Selçuk/Ephesus
• Visa: e-Visa required for most nationalities, available at evisa.gov.tr
• GPS files: Download the GPX or KML for OsmAnd, Garmin, or Google Earth