Echternach Basilica

Echternach Basilica around 1870, Luxembourg

Church at the oldest Anglo-Saxon monastery in continental Europe that was founded in 700 AD. Original buildings burned down in 1017 and a new church in Romanesque style was built.

St Peter’s Basilica

St. Peter's Basilica in Vatican

The most important church in Christian history, with the largest interior of any church. The present basilica was built in 1506 – 1626 and represents one of the most important pieces of Renaissance architecture. Contains the purported grave of Saint Peter.

Monemvasia

Monemvasia, Greece

Picturesque town perched between the sea and cliff, located on an island. The medieval town still is protected by city walls and a castle towering above it. Numerous historical buildings.

Gdansk St Mary’s Church

Gdansk St. Mary's Church

Third largest brick church in the world, an enormous Gothic structure constructed in 1379 – 1502. 25,000 people can fit inside the church. Very impressive, intricate vault system.

Blakitnaja Krynica (Blue Well)

Blakitnaja Krynica

Powerful, picturesque spring, considered to be the most powerful spring in East European Plain. Output – around 60 l/s. Site of legends, sacred place.

Caverne Patate

Caverne Patate, Rodrigues Island

The longest cave in Mauritius, 1 140 m long. It is adorned with stalactites and stalagmites. The cave is known since the 18th century and here have been found bones of extinct animals. Legends about the treasure hidden in it.

Hvalsey Fjord Church

Ruins of Hvalsey Fjord Church - the only remaining early medieval European structure in America, Greenland

Ruins of the oldest original church in the Americas, built in the late 10th century by Vikings. The church was built from enormous stone blocks, some up to 5 tons heavy. Fell in disuse in the 15th century.

Skellig Michael monastery

Skellig Michael monastery with Little Skellig in the background, Ireland

Exceptionally well-preserved remnants of an early medieval monastery located in a dramatic landscape – a cliff in the sea. This Christian monastery was founded here sometime in the 6th – 8th century AD and was occupied until the 13th century. The monastery was built on artificial terraces and contained six beehive cells, two oratories, a church as well as stone crosses and slabs.

Mnajdra

Mnajdra, lower temple. Such structures were created long before Stonehenge and Egyptian pyramids

Group of megalithic temples, built around 3600 – 2500 BC. These are sophisticated structures built from large stone slabs. The complex consists of three temples, each built in its own time. The lower temple was built around 3000 BC and might be the most impressive megalithic structure in Malta, it is astronomically aligned. Stones here are decorated with dots ad also spiral carvings.