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.

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.

Monaco Cathedral

Monaco Cathedral

Large cathedral in the old city, consecrated in 1875 and built in Neo-Romanesque style. Located in the site where the first church in Monaco was built in 1252.

Church of Santa Coloma d’Andorra

Church of Santa Coloma d'Andorra

The oldest church in Andorra, first mentioned in 1044 AD although it might be older. Church initially was built in local Pre-Romanesque style and has a prominent bell tower from the 12th century). Several original frescoes from the 12th century have been preserved inside the church.

Batalha Monastery

Batalha Monastery, Portugal

A beautiful structure of Dominican convent, built in Late Gothic style in 1386 – ˜1517. One of the greatest Gothic structures.

Petra

Al Khazneh, Petra

The ancient capital city of Nabateans was established around the 6th century BC at the site of an ancient sanctuary. Contains some of the most beautiful and intricate rock-cut architecture in the world, available after walking through some 1.2 km long, narrow gorge.