13th century

Spruce Tree House is an Ancestral Puebloan cliff dwelling in Mesa Verde National Park dating from c. 1200.

One of the greatest achievements in the history of architecture, Chartres Cathedral (1140-1260) is almost perfectly preserved in its original medieval design, from innovative Gothic architecture to extensive portal sculptures and stained glass.

Originally an abbey church, Peterborough Cathedral is a Norman and Gothic building featuring an unusual triple facade, a rare medieval painted ceiling, magnificent fan vaulting, and the tomb of Catherine of Aragon.

Constructed in the 12th and 13th centuries over a 6th-century bishop's tomb, Saint-Paul-Trois-Châteaux Cathedral is a small Provençal Romanesque church containing interesting medieval murals, mosaics, and sculptures.

A World Heritage Site, Maulbronn Monastery (Kloster Maulbronn) is the best-preserved medieval monastery north of the Alps. Its architecture, mostly in the Transitional Gothic style, was highly influential in the area.

Bologna's main square since 1200, the Piazza Maggiore is surrounded by impressive civic palaces and the Basilica di San Petronio.