The main church in the city is the largest cathedral in Slovenia, located in the historic Old Town. Dating an 18th-century design, today's cathedral is an elegant Baroque building, with twin towers and an enormous central dome. The lavish interiors that attract the most attention are a space of pink marble, white stucco and gold, lavishly decorated by many of the city's most prominent artists. Among the highlights are Baroque frescoes, and a pair of bronze walls erected in honor of the late Pope John Paul II.