The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople since its founding as the capital of the Eastern Roman Empire.

The Monastery of Stoudios, once a major Eastern Orthodox monastic community.

The Church of St. Polyeuctus was an important Byzantine structure in Istanbul.

Rumelifeneri Castle, located on the European side of the Bosporus.

Aydos Castle is a medieval fortress located on the Aydos Hill in Istanbul, Turkey.

Kirazlı Monastery, a historical Byzantine monastery surrounded by cherry trees.

Mishkova niva is a sprawling area known for its historical significance.

The Temple of Trajan is a monumental construction atop the acropolis of Pergamon.