Odawara Castle is famous for is for its cherry blossoms, plum blossoms, wisteria, iris, hydrangea, and azalea that bloom around the grounds. It was once the residence of the Hojo Clan that ruled the area during the Sengoku Period (1333-1573). In 1703, an earthquake hit the area and destroyed the castle, but it was quickly rebuilt. However, during the Meiji Restoration the castle keep and other structures were taken apart and sold. Later in 1960 the castle keep was rebuilt using ferro-concrete and based the design on old drawings and models from the Edo Period (1603-1869). Today the reconstructed building has four stories and features exhibits on the history of the castle with displays of swords and armor. There is also the Odawara Castle Historical Museum, which is located on the grounds and features more interactive displays on the history of the castle as well as the city. The castle is popular for the many flowers that bloom like the plum blossoms, cherry blossoms, azalea, wisteria, iris, hydrangea, and lotus blossoms.