On a narrow neck of land between two great lakes, where the waters of Lake Champlain squeeze toward Lake George, stands a star-shaped stone fortress that played an outsized role

On a bluff overlooking the mouth of the Ozama River, in the heart of the oldest European city in the Americas, stands a fortress that can claim a truly remarkable

At the mouth of the Potengi River, where the waters meet the Atlantic on the northeastern shoulder of Brazil, stands a five-pointed star of ancient stone rising almost from the

If Kronborg is the fortress of the Danish golden age, Frederiksborg is its dream palace. Rising on three small islands in the middle of a lake at Hillerød, north of

The cannons captured by the Bulgarian Army as a result of the 1st Balkan defeat of the Ottoman Empire.

In the green foothills of the Greater Caucasus, in what is now northern Azerbaijan, lie the ruins of a city that was once the capital of a kingdom most people

Some forts are monuments to war, but Galle Fort is a monument to life. On a rocky peninsula at the southern tip of Sri Lanka stands a whole walled town,

On the banks of the Niger river in eastern Mali, where the great waterway bends closest to the Sahara, stands a strange and striking monument: a stepped pyramid of mud,

Set on a dramatic promontory high in the Armenian highlands, above a deep gorge whose walls are lined with strange columns of natural stone, stands a building that seems at

On a drowned Breton island stands Gavrinis, a Neolithic passage tomb whose walls are almost entirely covered in swirling carvings — an artistic masterpiece created around 4000 BCE and then sealed away.