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). Read more.
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). Read more.
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). Read more.
Now recognizable as the inspiration for Disney's Sleeping Beauty Castle, Neuschwanstein is one of the most popular castles in Europe. Read more.
It's the world’s highest man-made structure - by more than 2,300 feet (700 meters)! Read more.
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. Read more.
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. Read more.
With spectacular 360-degree views of Lake Ashinko, the Hakone mountains, and the Owakudani Valley, climbing Mt. Fuji is an unforgettable experience. Read more.
Covering some 79 acres (32 hectares), the Keukenhof Tulip Gardens is the world’s largest flower garden. Read more.
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. Read more.
The entire Versailles site is larger than the island of Manhattan! Read more.
It's the only spot in the United States from which humans have been hurled into space! Read more.
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. Read more.
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! Read more.
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. Read more.
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. Read more.