This is a sculpture in DC. If you look closely the wires are the only thing holding it up.
Here is a view from the ground looking straight up.
Pi Pizzeria in Washington DC
Another picture of Pi Pizzeria in Washington DC
Pi Pizzeria in St. Louis
Inside Pi Pizzeria in St. Louis
"Big Tree" in the Redwood State and National Park
To give you some perspective on just how big "Big Tree" is.
This may not seem mathematical but did you know that prairie dogs are counted by the acres they occupy not by the number of prairie dogs there are.