Seattle is built on top of another city and you can walk under there.

The video taps into a common curiosity about hidden histories and urban legends, specifically focusing on a well-known city. The "haunted" aspect adds an element of intrigue and potential for shareability.

The video explains that Seattle is built on top of an older city that was destroyed by a fire. The creator shares that the original city's infrastructure, like street lamps and building windows, can still be seen underneath the current city, and some businesses even use the lower level. The area is known as Pioneer Square and is considered very haunted.