5 tables join in Laravel and sort by created_at

I'm making website for advertisements and people can publish things they are selling. So I have tables: cars, technology, real_estate, pets etc. All these tables have different columns except "created_at" column which is common for all tables.

Example:

CARS: [Model, Type, fuel type..., created_at]

PETS: [Name, Description..., created_at]

So if cars has 5 rows and pets has 7 and real_estate has 3 I need in return 15 rows sorted by created_at. I need to merge all 5 (or more) tables and sort them by created_at (without losing any of rows). Do you have some tips or idea how to do that in laravel (Eloquent)?

via Chebli Mohamed