1) The total length of your blood vessels can circle the Earth more than twice.

2) Orchids are one of the largest families of flowering plants, with over 25,000 species.

3) Egyptian mythology centers around deities such as Ra, Osiris, Isis, Horus, and Anubis. It explores concepts of creation, death, and the afterlife, with elaborate rituals and beliefs shaping ancient Egyptian society. The mythology is richly depicted in temple reliefs, burial sites, and hieroglyphic texts.

4) The world's first stock exchange was established in Amsterdam in 1602.