Third Military Gate and "Sigma", Istanbul

Third Military Gate and "Sigma", Istanbul

The third military gate is one of the two minor military gates that guard "the Sigma" - a "c"-shaped part of the wall, probably made to enhance the defense of the wall in that particular part. The third military gate is nowadays sealed up, but you can come and see the site from where the ancient defenders of this magnificent city stormed out to defend the walls. "The Sigma" is still a topic of discussion for historians.

This sight is featured in a self-guided walking tour of Istanbul, Turkey within the mobile app "GPSmyCity: Walks in 1K+ Cities" which can be downloaded from iTunes App Store or Google Play. Please download the app to your mobile phone or tablet for travel directions for visiting this sight. The app turns your mobile device to a personal tour guide and it works offline, so no data plan is needed when traveling abroad.

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Third Military Gate and "Sigma" on Map

Sight Name: Third Military Gate and "Sigma"
Sight Location: Istanbul, Turkey
Sight Type: Attraction/Landmark
Guide(s) containing this sight: Theodosian Wall of Constantinople  

Walking Tours in Istanbul, Turkey

Create Your Own Walk in Istanbul

Create Your Own Walk in Istanbul

Creating your own self-guided walk in Istanbul is easy and fun. Choose the city attractions that you want to see and a walk route map will be created just for you. You can even set your hotel as the start point of the walk.
Shopping Tour of Istanbul

Shopping Tour of Istanbul

Istanbul can easily claim to be one of the most interesting cities in the world. Located on the very edge of Europe, it later expanded into Asia resulting in a mixture of both cultures. When it comes to shopping you will be amazed by the variety of goods you can buy here and the way everybody bargains - even in the grocery store. Take this tour and explore the legendary bazaars and the hidden...  view more

Tour Duration: 2 hour(s)
Travel Distance: 3.4 km
Roman Heritage of Outer Constantinople

Roman Heritage of Outer Constantinople

Istanbul, known as Constantinople in the Middle Ages, was the capital of the Eastern Roman Empire for over a millennium. Although conquered by the Ottomans in 15th century, the city still preserves many signs of its imperial Roman past that reflect the might and splendor of this long vanished empire.

Tour Duration: 3 hour(s)
Travel Distance: 5.5 km
City Orientation Walk

City Orientation Walk

Istanbul, Turkey's main city, straddling the Bosphorus Strait to bridge gap between Europe and Asia, is an ancient metropolis embracing cultural influences of many civilizations that once flourished on this land. The Blue Mosque in Sultanahmet part of the Old Town, the Roman-era Hippodrome, and the iconic Byzantine Hagia Sophia are just some of the multiple historic landmarks adorning the...  view more

Tour Duration: 3 hour(s)
Travel Distance: 5.4 km
Roman Heritage Walking Tour II

Roman Heritage Walking Tour II

Constantinople was an imperial capital for over a millennium and still contains many sites that demonstrate the importance and greatness of the Eastern Roman Empire. This tour will take you trough the most famous of them, located in the inner city of Constantinople.

Tour Duration: 1 hour(s)
Travel Distance: 1.7 km
Asian Part Walking Tour

Asian Part Walking Tour

Istanbul, Turkey's wealthiest and biggest city is split by the Bosphorus in two parts - European and Asian. In this tour you can experience the eastern side and feel the true spirit of the Orient with small, crowded streets and countless mosques.

Tour Duration: 2 hour(s)
Travel Distance: 5.1 km
Museums Tour

Museums Tour

Istanbul is a city with nearly 2 millenia of history as a capital of empires and the largest city of the republic of Turkey. Tourists may see history on every corner, but museums have the finest artifacts on display. We invite you to walk through the best museums in Istanbul in the guide below.

Tour Duration: 3 hour(s)
Travel Distance: 7.5 km

Useful Travel Guides for Planning Your Trip


Istanbul Shopping Guide: 16 Turkish Items To Bring Home

Istanbul Shopping Guide: 16 Turkish Items To Bring Home

Istanbul, known throughout history as Byzantium and Constantinople, has been a major center of commerce and trade, a place where merchants and general folk would rush to regularly in search of exotic things. In our days, modern travelers to Istanbul are also bound to enjoy a truly magnificent...