Postcard TR-482508

What is this card about? Can someone please explain it to me? :)

“Hi Katherine !
The building you see behind the postcard is Galata Tower. It is located in Istanbul. A building built in 507. It has been exposed to many fires but still standing tall :) It is rumored that you will marry the person you climb there hand in hand. The person with the wings you see in front is Hezerfen Ahmet Çelebi. He is a real person who managed to fly around the world with wings. Between 1623 and 140, he tried to fly by designing those wings. He designed these wings by studying the flight of birds. One morning, before the eyes of the people of Istanbul gathered on the shore, he put on wings from the Galata tower and left himself, crossing the Bosphorus and descended to Üsküdara. I chose a postcard with such an interesting story for you :)”