Karlskirche, or St. Charles's Church, is a baroque church located in Vienna, Austria. It was commissioned by Emperor Charles VI in the early 18th century to honor the patron saint of the plague. The church features a stunning dome and two towering columns, inspired by the Trajan's Column in Rome. The interior of Karlskirche is equally impressive, adorned with frescoes and intricate decorations. Visitors can ascend to a viewing platform inside the dome for panoramic views of Vienna. The church is a significant landmark and a popular destination for both tourists and locals.