Eiffel Tower, Paris, France
It's held together with 2.5 MILLION rivets. Its paint alone weighs a staggering 40 TONS. And if you want to get to the top, you've gotta climb over 1600 steps. Impressive? You bet! But when it went up in 1889, the Eiffel Tower shocked Parisians right out of their berets. It was so radical and bizarre they just didn't know what to think! Today, of course, it stands as one of the most recognized national symbols in the world!

  Lake Okeechobee, FL, USA
Think of it as the world's largest puddle. Florida's Lake Okeechobee (cool name!) spans over 700 miles, but it never gets deeper than 15 feet. Just think, if you were 16 feet tall you could walk across the entire thing! (But if you were 16 feet tall, you'd probably be too busy doing other things, like shopping for pants.) While Lake Okeechobee holds only 2 cubic miles of water, it supplies south Florida with just about all the H2O it can handle.
  Roswell, NM, USA
If you believe any of the multitudes of weird stories that come out of Roswell, this town is THE hot vacation spot for visiting UFOs. Some say it's a government cover-up. Some say the desert is abounding in secret experiments and flying saucer landings. Still others just think it's plain old hooey. The truth is out there somewhere—in the mean time, it's definitely a good place to pick up a wacky souvenir.
  Roman Colosseum, Rome, Italy
You think the Astrodome is impressive? Well, maybe it is. But no modern stadium has caused as many jaws to drop as the Colosseum did back in 82 A.D. when it was built. And it's a safe bet no present-day arena has hosted such barbaric and bizarre spectacles—like lion vs. gladiator fights—as were seen in the Colosseum, which in its heyday sat upwards of 50,000 Romans and shielded them from the heat (and other flying stuff).
  Taj Ma Hal, Agra, India
They say love knows no bounds, and apparently nobody knew that better than Emperor Shah Jehan of 17th century India. When his wife died during childbirth, the shattered Shah built the Taj Mahal as a lasting tribute to his eternal love. And it worked! To this day, thousands flock to the Taj Mahal, generally regarded as one of the most beautiful structures ever built.
  Dracula's Castle (Bran Castle), Romania
Built way back in 1212 by a group of ancient Romanians known as the Teutonic Knights, this impressive medieval castle rests high atop a hill in the mountain village of Bran. It was never actually the home of Count Dracula, but a guy called Vlad Tepes, whose nastiness spawned the frightening tales of vampirism, was imprisoned there. If old Drac were to pick a place to call home, however, this eerie edifice would definitely be on the short list!
  Area 51, NV, USA
Area 51 is a top-secret Air Force base the U.S. government doesn't want you to know about! Rumor has it experimental jets like the U2, SR-71 and Stealth Fighter were first tested on the site. But folks in the know will tell you it's not U2s but UFOs that really make Area 51 so mysterious. People might say aliens like to land in Roswell, but many believe extra-terrestrials and their spaceships are STORED at this facility!
  The Cahokia Mounds, Collinsville, IL, USA
The Cahokia burial mounds comprise the largest earthen structure in the entire western hemsphere and the biggest archaeological site in the U.S. These massive mounds were built between 900 and 1200 A.D. by a subtribe of the Illini Indians in southern Illinois. They stand roughly 100 feet high and are about 300 yards wide and 300 yards long. A sacred symbol of the heritage of a great people, the Cahokia Mounds are a popular destination for travelers.
  The Petrified Forest National Park, AZ, USA
Despite its name, the Petrified Forest isn't a bunch of trees standing around NOT blowing in the wind. It's actually a vast scattering of what appear to be fallen logs. And that's exactly what they are—until you look closer, and notice that they've turned to stone! In the Triassic period, these trees were buried in volcanic ash. Then minerals replaced the original cells of the wood, transforming it into solid rock!
  Old Faithful, Yellowstone National Park, WY, USA
Smack in the middle of Yellowstone National Park, the world's most famous geyser erupts just about hourly, like clockwork. Why? When snow and rain runoff trickles into cracks in the Earth, the water collects thousands of feet below—where it's HOT, HOT, HOT! The water boils, and once enough steam accumulates...BOOM! It erupts and forces the water out through the opening we call a geyser. Typically, Old Faithful blasts 15,000 gallons of water about 200 feet in the air!

Easter Island, Chile
Easter Island is over 2,000 miles from its closest neighbors, Tahiti and Chile, making it one of the most isolated places on Earth. A triangle of volcanic rock in the South Pacific, it's best known for the giant stone monoliths, known as Moai, that dot the coastline. If they didn't weigh hundreds of pounds, these babies would make great Halloween masks.