Torta is a culinary term that can, depending on the cuisine, refer to cakes, pies, flatbreads, sandwiches, or omelettes.
Torta
Torta dolce (sweet cake), from Perugia, Umbria, Italy
Visayan torta mamón from the Philippines
Tortang gulay, a Philippine vegetable omelette
A flatbread is bread made usually with flour; water, milk, yogurt, or other liquid; and salt, and then thoroughly rolled into flattened dough. Many flatbreads are unleavened, although some are leavened, such as pita bread.
Homemade flatbread
Pane carasau from Sardinia
Lagana from Greece
Georgian tonis puri