Denmark has several beautiful botanical places worth visiting. Here are some of the most well-known ones:

1. Botanisk Have (The Botanical Garden), Copenhagen - This garden is located in the heart of Copenhagen and is one of the oldest botanical gardens in the world. It features over 13,000 plant species from around the world, including a large collection of Nordic plants.

2. Aarhus Botanical Gardens - Located in Aarhus, the second-largest city in Denmark, these gardens feature a large collection of plants from around the world, including many rare and exotic species.

3. Geografisk Have (Geographical Gardens), Kolding - This garden is located in the town of Kolding and features plants from all over the world, organized according to their geographic regions.

4. Langelandsfortet Botanisk Have (Langelandsfort Botanical Garden) - This garden is located on the island of Langeland and features a large collection of plants from the Danish countryside, including many rare and endangered species.

5. Dronninglund Slotspark (Dronninglund Castle Park) - This park is located in the town of Dronninglund and features a large collection of trees and shrubs from around the world, including a notable collection of magnolias.