Stelling van Amsterdam

The Stelling van Amsterdam was the most advanced military structure of its type in the world – 135 km (84 miles) of forts, batteries and moats completely encircling the city in a defensive barrier.

Colosseum

The Colosseum or Coliseum, also known as the Flavian Amphitheatre is an elliptical amphitheatre in the centre of the city of Rome, Italy.

Sobibor Extermination Camp

Sobibór was a Nazi German extermination camp located on the outskirts of the village of Sobibór, Lublin Voivodeship of the Nazi German General Government (occupied Poland).

The Forgotten Giants

Danish artist Thomas Dambo has been building stuff using trash and recycled materials since an early age, starting with smaller sculptures such as birdhouses and furniture to bigger pieces such as the six “Forgotten Giants” he recently installed around Copenhagen.

The Outer Trial Bank

The Outer Trial Bank is a circular artificial island in the Wash, East Anglia, England. It is one of two islands constructed during the 1970s for a governmental water resources scheme.

The Øresund Bridge

The Øresund Bridge is an approximately 16 km long road and rail link between Sweden and Denmark. But it is much more than that. The Øresund Bridge has created a region with a population of 3.7 million inhabitants.

Pripyat

A vast stretch of snow-covered bleakness, this Ukrainian city has been deserted since the nuclear accident of April 1986.

Stonehenge

One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks. It is in the middle of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds.

Khirokitia

Khirokitia (sometimes spelled Choirokoitia; Greek: Χοιροκοιτία [çiɾo̞ciˈti.a]) is an archaeological site on the island of Cyprus dating from the Neolithic age. It has been listed as a World Heritage Site by UNESCO since 1998. The site is known as one of the most important and best preserved prehistoric sites of the eastern Mediterranean. Much of…

Borovsko Bridge

The Borovsko Bridge is an unfinished highway bridge near Borovsko , part of Bernartice municipality, Central Bohemian Region, Czech Republic. It is commonly known as the “Czech Avignon” or “Hitler’s Bridge”.

Craco, Basilicata

Craco is an abandoned comune and medieval village located in the Region of Basilicata and the Province of Matera in Italy.

Janowska Concentration Camp

Janowska was a Nazi German labor, transit and concentration camp established September 1941 in occupied Poland on the outskirts of Lwów (Poland, today Lviv in Ukraine).

Hadrian’s Wall

Hadrian’s Wall was a defensive fortification in Roman Britain, begun in AD 122 during the rule of emperor Hadrian. In addition to its military role, gates through the wall served as customs posts.

Peenemünde Army Research Center

The research and development carried out in Peenemünde was not only crucial to the course of WWII, but impacted the future of weapons of mass destruction, as well as space travel.

Mont Aiguille

The mountain, known as one of the Seven Wonders of Dauphiné, is a relatively flat limestone mesa (a table shaped elevated area of land) surrounded by steep cliffs