The Cave of Altamira is located near the historic town of Santillana del Mar. It is renowned for prehistoric parietal cave art featuring charcoal drawings and polychrome paintings of contemporary local fauna and human hands. The earliest paintings were applied during the Upper Paleolithic, around 36,000 years ago.
Because of their deep galleries, isolated from external climatic influences, these caves are particularly well preserved. The caves are inscribed as masterpieces of creative genius and as the humanity’s earliest accomplished art. They are also inscribed as exceptional testimonies to a cultural tradition and as outstanding illustrations of a significant stage in human history.
Altamira was declared a World Heritage Site by UNESCO in 1985 as a key location of the Cave of Altamira and Paleolithic Cave Art of Northern Spain.
The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.