Scavenger hunt marriage proposal

Valentin and his girlfriend were dating for 6 years on their anniversary he decided to make something special for her. He placed different clues around his hometown in Austria, one of the clue was a ticket to NY. So all of a sudden, she flew to the Big Apple for the weekend. At the hotel she found another lead, that brings her to the private rooftop, where the love of her life was already waiting for her.