Germany

Cologne Cathedral (Kölner Dom) is the greatest Gothic cathedral in Germany and has been Cologne's most famous landmark for centuries. Once the tallest building in the world, it still has the largest facade anywhere.

Commissioned by Charlemagne in 786, this is the oldest cathedral in Northern Europe. A graceful Gothic choir was added to the Carolingian core in the 15th century. Inside are several major relics and early medieval artworks.

On the door of this church in 1517, Martin Luther posted his 95 Theses against the sale of indulgences and launched the Reformation. The church contains the tombs of Luther, Melanchthon and Frederick the Wise.

This Gothic cathedral with Romanesque parts is an impressive edifice that uses its unique sloping site to full advantage. Inside are many important art masterpieces.

Located a block from the cathedral, the Aachen Treasury is a must-see. It contains numerous golden medieval reliquaries and other important religious artworks.

A magnificent Romanesque cathedral crowning the highest hill of a beautiful Bavarian city.

Located next door to the cathedral, this church has a distinctive triple-towered east end and a celebrated monumental tomb by the Master of St. Severus.

A spectacularly modern square occupying historic Potsdamerplatz, the Sony Center is especially famed for the unique and dramatic canopy that stretches high above the central forum.