St. Stephen's Church (St. Stephan Kirche) in Karlsruhe is a significant Catholic church The church design is inspired by Roman and Greek classical architecture, with a massive central dome and large Corinthian columns, giving it a majestic and monumental appearance.

The Town Hall of Karlsruhe (Karlsruher Rathaus) is an important municipal building. One of its defining features is a tall central tower, which gives it a commanding presence in Marktplatz, the main square of Karlsruhe. The building is from the same architect who created St. Stephen's Church

The Protestant Church (Evangelische Stadtkirche) like many key buildings in Karlsruhe, was designed in the Neoclassical style. The church originally had a large central tower, this tower was severely damaged during World War II, and it was never fully reconstructed in its original form.

The Karlsruhe Pyramid is iconic. The Pyramid marks the tomb of Margrave Charles III William (Karl Wilhelm von Baden-Durlach), the founder of Karlsruhe. In 1715, Charles William established Karlsruhe as a new city, centered around his palace. The Pyramid was built over his final resting place, symbolizing the city's origins and honoring its founder. The Pyramid is an example of Egyptian Revival architecture, which became popular in Europe in the 18th and early 19th centuries due to fascination with ancient Egyptian culture.

The Karlsruhe Palace (Karlsruher Schloss) is directly linked to the founding of the city. In 1715, Margrave Charles III William of Baden-Durlach built the palace in the middle of a forest clearing. The Karlsruhe Palace is at the center of a rare urban design in Europe: The city was laid out in a radial plan, with streets fanning out from the Palace.

The Federal Constitutional Court of Germany (Bundesverfassungsgericht) s the highest court in Germany concerning constitutional matters. The decision to place the Federal Constitutional Court in Karlsruhe (in the southwest of Germany) rather than in Berlin or Bonn was made after World War II as a symbol of decentralization. The court’s building in Karlsruhe is notable for its modernist design, reflecting transparency and openness

Gottesaue Castle (Schloss Gottesaue) is a historic Renaissance-style castle.T he castle is built primarily from red sandstone, which gives it a distinctive and majestic appearance, especially in contrast to the lush green surroundings of its park. The castle’s four corner towers and richly decorated façade create a special atmosphere

The ZKM (Center for Art and Media) is unique in its mission to explore the intersection of contemporary art, media technology, and digital culture. It functions as a museum, research institute, and production facility, blending traditional and digital art forms. ZKM is housed in a large former munitions factory, the IWKA munitions plant, which was converted into a modern, open museum space.