This video shows a way to create an AirBnB style photo display using standard Bricks Builder features.
I do use Automatic CSS and Advanced Themer for productivity. However, neither plugin is required to achieve this.
I also use MetaBox to create our Property CPT and fields. However, this could also be done with ACF or custom code in your child theme.
This solution uses zero custom PHP code. The only limitation is that the photo gallery must be the only media on the CPT.
Sorry at 1:48 I say 4 Photos, it should have been 5