What are some 'must see' natural wonders on Mars?

Some natural wonders seem to change with the wind and sun. The "Murray Buttes" at Mt. Sharpe is suggested by Curious Rover, too. More suggestions are found on Twitter: Curious Rover, Mars Tourist Board (only few pictures), Sarcastic Rover. read more

The only remaining Ancient Wonder from the original list, the Egyptian pyramid dates back nearly 5,000 years. Venture inside one of the Royal Burial Chambers and see the funerary boat of Cheops. View the Great Sphinx of Giza - a monumental statue carved from a single block of stone. The Great Pyramid is the largest of the three pyramids in Giza. read more

Some of the rock formations, including The Wave, are just as spectacular. Visitors need a permit from the Bureau of Land Management -- the permit for an overnight trek comes with a "human waste bag," so if you want to visit this natural wonder, you'll have to prepare to pack your waste. read more