What are those red flowering trees and why don’t they have leaves?

This post curtesy of Chat GPT (The photos are mine)

The vibrant red flowering plant in your photos is Bougainvillea.

Key Features:

The bright red or magenta “flowers” are actually modified leaves called bracts. The true flowers are small, white, and tubular, nestled inside the bracts. Bougainvillea is a tropical and subtropical vine that thrives in full sun and dry conditions. It can be trained into trees, shrubs, or used as climbers over walls, fences, and pergolas.

This plant is especially popular in Mediterranean climates—like in Greece, where your photo likely was taken—due to its brilliant color and drought tolerance.