Don't wait in line! Buy Skip the Line tickets. En savoir plus .
Buckingham Palace has been the Queen's official residence since 1837 (when Queen Victoria decided St James's Palace, just down the road, was too small and unimpressive). En savoir plus .
The Colosseum in Rome is one of the world's best known sites from antiquity (for something built in 80 AD, the Colosseum is holding up very well). En savoir plus .
The 86th-floor observatory is 1,050 feet (320 m) high, and if you pay a little extra you can visit the more intimate, enclosed observatory on the 102nd floor at 1,224 feet (373 m). En savoir plus .
Now recognizable as the inspiration for Disney's Sleeping Beauty Castle, Neuschwanstein is one of the most popular castles in Europe. En savoir plus .
It's the world’s highest man-made structure - by more than 2,300 feet (700 meters)! En savoir plus .
The town of Salisbury is 8 miles south and the beautiful medieval Salisbury Cathedral is a must. The famous Magna Carta is also housed there. En savoir plus .
On the way to Alcatraz, take in the breathtaking panorama of the Golden Gate Bridge, Bay Bridge, and Angel Island; the Ellis Island of the West. En savoir plus .
With spectacular 360-degree views of Lake Ashinko, the Hakone mountains, and the Owakudani Valley, climbing Mt. Fuji is an unforgettable experience. En savoir plus .
Covering some 79 acres (32 hectares), the Keukenhof Tulip Gardens is the world’s largest flower garden. En savoir plus .
The London Eye is the fourth-tallest structure in London, so the far-reaching views over London are spectacular. On a clear day you can see as far as Windsor Castle. En savoir plus .
The entire Versailles site is larger than the island of Manhattan! En savoir plus .
It's the only spot in the United States from which humans have been hurled into space! En savoir plus .
In the middle of the valley, you’ll find the Visitor’s Center, which is handy if you want to stock up on water, find a bathroom, or maybe just seek out some shade. En savoir plus .
Buy Skip the Line tickets so you aren't stuck in the queue! En savoir plus .
In 1883 Monet fell in love with the place through a train window. He found a house there, moved in with his lady-friend, his two sons, and her six children, and stayed until his death in 1926! En savoir plus .
A favorite haven of bushwalkers and rock climbers, the area offers outdoor pursuits, scenic drives, manicured gardens, leisurely shopping and pampering at spas and luxurious accommodations. En savoir plus .
It was built in just five years - an impressive feat, considering the dam is made of enough concrete to pave a road from New York to California. En savoir plus .