Finding them is the best part
If you stick a pair of headphones in your nose and open your mouth, your music will play out of your mouth like a speaker. (Bad_Neighbour)
Don’t believe us? Try it yourself!
Center of the Universe
In Tulsa Oklahoma, there is a location called The Center of the Universe. If you stand in this unassuming circle in a concrete area, and drop a penny, the fall of the penny will sound like the clang of a gong.
This is because of low parabolic walls a distance around the circle, focusing sound waves at your location.
For an added bonus, yell “I am at the center of the universe!”
It’s located in downtown Tulsa, Oklahoma at the apex of a rebuilt span of the old Boston Street Bridge between 1st and Archer Street. (NazzerDawk)
Even Tulsa News checked it out.
In downtown Houston, on the Preston street bridge, there’s a red button. It has no label or sign saying what it’s for, but it looks very industrial, the sort of button that starts generators or raises bridges. If you hold it down for about thirty seconds a huge bubble blurps up out of the bayou below. That’s all it does. Apparently it’s a city art installation which is intentionally unlabeled and only spread by word of mouth. (R-Guile)