The Zhuhai Chimelong Marine Science Park in Zhuhai, China, is famous both for its impressive offering of rare marine wildlife from all over the world and its sci-fi-inspired design.

Announced in 2015, the Zhuhai Chimelong Marine Science Park immediately captured people’s imaginations with its futuristic design reminiscent of alien motherships depicted in sci-fi flicks and video games. Described as the largest indoor marine science park in the world, with more than 100,000 marine animals of around 300 species, as well as 100 kinds of living coral split into 10 themed areas. Originally scheduled to open in 2021, after ten years of planning and just over 5 years of actual construction, the giant marine science park only opened its gates to the public this month.

The Zhuhai Chimelong Marine Science Park has a total length of approximately 650 meters and covers a total area of about 400,000 square meters. It can accommodate over 50,000 visitors per day and boasts several world records, including the world’s largest aquarium display window and the world’s largest living coral tank.

Built by Chimelong Group, which also owns the Zhuhai Chimelong International Ocean Resort, the Zhuhai Chimelong Marine Science Park cost $1.1 billion, making it the most expensive marine science park, as well as the largest indoor one.

While the park may have just opened its gates to the public, a lot of people have been talking about its unique exterior design, particularly its unusual resemblance to an alien starship.