Currently in circulation the highest dollar bill is with a face value of $100, although the largest denomination of currency ever printed was the $100,000 Series 1934 Gold Certificate featuring the portrait of President Wilson, but never released for public circulation, only for official transactions between Federal Reserve Banks.
Good, now you're ready for the eastern walls of Olympus Mons. 17Â°23'26.69 N 128Â°57'25.39. W looks challenging enough for you, you can start at 793m elevation and finish at 5642m elevation.
It is called Olympus Mons and is 16 miles (24 kilometers) high which makes it about three times higher than Mt. Everest. In addition to being very tall, it is also very wide (340 miles or 550 kilometers) and covers an area larger than the entire chain of Hawaiian islands.