: The episode highlights the Lighthouse at Farhampton as a central romantic landmark for the series.
: It marks a significant shift in Ted’s journey, showing him finally ready to let go of the past and commit to his future. [S6E23] Landmarks
There is also a show called on Sky/NOW where artists compete to create major public sculptures across the UK. If you meant a different series like The Big Bang Theory , S6E23 is titled "The Love Spell Potential" and features a Dungeons & Dragons game. If you'd like more details on a specific show: : The episode highlights the Lighthouse at Farhampton