Holstentor (Holstein Gate) in Lübeck is one of Germany's most recognizable buildings and the symbol of the former Hanseatic city's wealth and power.
The gate is an excellent example of North German brick Gothic (Backsteingotik), a style characteristic of Hanseatic cities in northern Germany and along the Baltic Sea. Built between 1464 and 1478, it originally consisted of an outer and inner gate. What we see today is the western, inner gate - the most significant part.
The gate served as part of Lübeck's fortifications, defending the city against attacks and controlling access and trade. It consists of two massive round towers with conical slate roofs and a central passage between them. A notable feature is that the foundation has sunk into the marshy ground, causing the entire gate to lean slightly forward. This problem has required extensive restoration work over time.
Above the arch on the city side stands the famous Latin inscription: CONCORDIA DOMI FORIS PAX, meaning "Unity at home, peace abroad." On the field side facing outward is SPQL, standing for Senatus Populusque Lubecensis ("The Senate and People of Lübeck").
Today, the gate houses a museum (Das Holstentor Museum) focusing on Lübeck's history, particularly the Hanseatic period. Holstentor, along with Lübeck's historic center, is on the UNESCO World Heritage List.