The city was heavily damaged by air raids in 1945, especially on March 22. The centre, which had retained its medieval character until then, simply ceased to exist. After the war, it was rebuilt in a completely different style and concrete structures took the place of the destroyed buildings. Fortunately, most of the major churches, two of them now UNESCO World Heritage Site, were rebuilt soon after the war. In the 1980s reconstruction of the historic centre began. Some of the unattractive concrete buildings around the marketplace were torn down and replaced by replicas of the original buildings. In the fall of 2007, a decision has been made to reconstruct the "Umgestülpter Zuckerhut" ("Upended Sugarloaf"), an iconic half-timbered house famous for its unusual shape. It is scheduled to be completed in 2009.
The historic Marketplace (Markt) was once considered one of the most beautiful marketplaces in the world. It was reconstructed in 1984-1990 to its former splendour, after its destruction in the 1945 air raid. The more noteworthy buildings in the square are:
The Knochenhauer-Amtshaus ("Butchers' Guild Hall"), once known as a beautiful and fine specimen of half-timbered building. Destroyed in 1945, it was reconstructed from 1987 to 1989 according to original plans. The facade is sumptuously decorated with colorful paintings and German proverbs. Today the building houses a restaurant and the City Museum.
The Town Hall, erected in the 13th century in Gothic style. Partly destroyed in 1945, it was rebuilt between 1954 and 1989.
The Tempelhaus, a late-Gothic 15th-century patrician house, which today houses the tourist information office. It suffered some damage during the second world war but was restored in 1952.
The Wedekindhaus, a 16th-century patrician house, is characterized by its high, ornately carved storeys including their ledges with depictions of allegorical figures.
The RomanesqueSt. Mary's Cathedral, with its ancient bronze doors (Bernward's door) (c. 1015). The church was built in the 9th century, but almost completely destroyed in 1945; it was reconstructed soon after the war. It is in the list of the UNESCOWorld Heritage Site since 1985. The Thousand-Year-Old Rosebush is a 1,000 years old rose, allegedly the world's oldest living rose. It continues to flourish on the wall of the Cathedral.
Museum of the Cathedral: Cathedral Treasure.
St. Michael's Church (UNESCO World Heritage Site) – a noteworthy early Romanesque church in Germany and a unique example of Ottonian architecture. It was built from 1010 to 1022.
The Roemer-und-Pelizaeus-Museum, with significant collections from the ancient Egypt and Peru and spectacular special exhibitions organized every year.
Other places of interest include the Theatre, offering opera, operetta and musicals, drama, ballet and concerts, the medieval-appearing half-timbered houses and the old Jewish quarter.
Hildesheim is home to notable multinational corporations – besides many strong medium-sized companies – in Hildesheim are Blaupunkt, Bosch, Krupp, Thyssen, Fairchild and Coca-Cola.
Transportation
Hildesheim has an efficient traffic infrastructure: it is a regional hub for interstate roads and railroad (InterCityExpress), is connected to the motorway (Autobahn), has a harbor at the artificial waterway Mittellandkanal and an airport.