its Atlantica underwater kingdom featured in the little mermaid franchise. Its a 3d printable model and can be used for decorating your fish tank.the file is divided into several pieces with each building being a separate piece for ease of printing and huge buildings are further divided into pieces to acoomodate on smaller printers like ender3.please check the image where i have numbered buildings so you attach them in proper order.a complete file is also included in case you want to cut it yourself.thank you and leave a like if you like it and do check my other models too