St. Mary's Cathedral in Hildesheim is a stunning example of Romanesque architecture. The cathedral was built in the 11th century and is considered one of the most important churches in Germany. The exterior of the cathedral is adorned with intricate carvings and sculptures, including the famous bronze doors that depict scenes from the Bible. The interior of the cathedral is equally impressive, with soaring ceilings, colorful stained glass windows, and ornate altars. Visitors can also see the historic crypt, which houses the remains of Bishop Bernward, who oversaw the construction of the cathedral. St. Mary's Cathedral is a must-see for anyone interested in history, architecture, or religious art.