Find the following video title - Welcome to London - Look for the riddles to unusual places to visit in London - in the Puzzle Video Playlist
N 45 27.xxx, w 75 42 .yyy
To calculate the final decimals for the North and West coordinates, fill in the blanks in the following sentences found in the video.
North - Both vehicles have evolved over decades to incorporate modern accessibility and eco-friendly technology while preserving their classic aesthetics
xxx = (#letters) X (digital root) + 415
West - Today, visitors can explore its dark dungeons, medieval chambers, and sparkling royal - safeguarded by elite military guardians.
yyy = (#letters) X (digital root) + 551