Karlstor

Karlstor is a stone triumphal arch at the eastern end of Hauptstrasse, topped with four lion figures and featuring portrait carvings on both sides. The structure combines classical Roman architectural elements with local coats of arms and displays skilled stonework details throughout.

Nicolas de Pigage built the gate between 1775 and 1781 to honor Elector Karl Theodor, who promoted commercial activity in the city. The project emerged during a period when Heidelberg sought to strengthen its economic importance.

The gate displays coats of arms and lion sculptures that visitors encounter directly when passing through. These stone carvings continue to shape how people experience this spot and remind them of the city's earlier political importance.

The gate sits at the end of Hauptstrasse in the Old Town and serves many as a natural starting point for exploring the historical district. Visitors can reach the area easily on foot and enter the surroundings without special preparation.

Construction costs exceeded the original estimates significantly, prompting public protests despite the structure being intended as a gift to the city. This financial conflict is often forgotten today, but it shows how controversial such ambitious projects could be.