Berggarten

The Hill Garden is a historic botanical garden, one of the gardens of the Herrenhäuser Gärten, around the residence Herrenhäuser Schloss in Herrenhausen, now part of Hanover, Lower Saxony, Germany. The garden was first created in 1666 as a vegetable garden on a hill north of the palace, and then transformed into a garden for exotic plants. In 1750, it was developed into a botanical garden, with some unusual trees from the period still surviving. It features a palm house, first built in 1846, and a mausoleum, where members of the royal family were interred. Damaged by air raids in World War II, the gardens were restored. In 2000, a house for rain forest-themed gardens was added, which was transformed to an aquarium in 2007.

Source: Wikipedia