If you haven't figured out today's Geo Quiz yet...here's a musical clue to help you out.

"Come fly with me let's fly let's fly away Singapore Flyer new at Marina Bay ...."

There it is - The Singapore Flyer!

Singapore, the answer to our quiz, is now home to the tallest observation wheel in the world. The giant spoked wheel cost about 240-million dollars to build.

Tickets cost about 22 dollars. The price includes a ride to the top and the trip back down.

The Singapore Flyer stands taller than the London Eye and the Star of Nanchang.

But China is planning an observation wheel for Beijing that will soar nearly twice as high as the Flyer.

But Berlin and Beijing are planning their own observation wheels that may one day soar twice as high as the Flyer.