2. Sydney Harbour Bridge: The world’s largest (though not longest) steel arch bridge rises more than 440 feet above sea level. A rogue paramilitary captain achieved infamy by running up and slashing the ceremonial ribbon with a sword during the grand opening in 1932.

3. Uluru: Previously known as Ayers Rock, the world’s largest monolith was returned to local Aboriginal tribes in the 1980s. The Aboriginal owners consider the nearly 1,150-foot-high red rock a sacred site. Thousands of tourists climb Uluru every year, although the owners would prefer otherwise.

4. Katatjuta: A smattering of tall, rounded rocks near Uluru. Like it, they are culturally significant; the indigenous name means “many heads.” (Before reverting to Aboriginal ownership, they were known as the Olgas.)

5. Great Barrier Reef: Despite its name, this isn't one continuous reef, but a maze of more than 2,500 smaller reefs. Together they stretch for 1,250 miles, roughly paralleling the coast of Queensland in northeast Australia.

6. Bungle Bungles: A range of striped rock towers in remote Western Australia, most easily seen on scenic flights of the area.

7. Twelve Apostles: A series of huge stone pillars protruding from the Southern Ocean, seen along Victoria’s scenic Great Ocean Road.

8. Birdsville Pub: Australia's most isolated pub. In the tiny town’s heyday, Queensland cattle drovers on horseback stopped here to pay a colonial customs fee before heading down the 300-mile Birdsville Track into South Australia. Today, adventure-seeking motorists drive the same route.

9. Three Sisters: Three high rock outcroppings in the Blue Mountains west of Sydney. They proved so popular to climbers that scaling them was outlawed this year to help preserve them.

10. Dingo fence: A 3,400-mile barrier designed to keep dingoes out of southern Australia, where they prey on sheep.