Perhaps no structure on this list more embodies the original impulse behind the tall building — pure human hubris — than Dubai’s Palm Islands. Composed of three separate islands, Palm Jumeirah, Palm Jebel Ali and Palm Deira, the entire construction will add nearly 330 miles of beach front to the city of Dubai. Parts of Palm Jumeirah are currently open for development, with the remaining islands to be completed in the next 10-15 years. When finished, the three islands will contain over 100 luxury hotels while Palm Deira itself will be almost as large as Paris.

The World's Tallest Hotel Not in Dubai

Though eclipsed both by Dubai’s Rose Tower and Jumeirah Emirates Tower, the Baiyoke Tower II in Bangkok, Thailand, nevertheless boasts 88 floors and 673 guest rooms. The 997-foot Tower is located in Bangkok’s Ratchathewi district known for its shopping and its 1.5 mile long artificial lake.

The World's Largest House

Indisputably, the Sultan of Brunei’s Istana Nurul Iman is the world’s largest residence. Really more of a palace, this structure boasts an impressive 2,152,782-square-feet of space, comprised of 1,788 rooms (including 257 bathrooms), and is home to the Sultan's car collection, including 165 Rolls Royces. (It easily dwarfs Buckingham Palace's 828,818 square feet). Unfortunately for non-royals, the Sultan’s palace is only open three days a year for the Islamic festival of Hari Raya Aidilfitri, marking the end of Ramadan. However, in 2009, Indian multi-billionaire Mukesh Ambani is scheduled to complete construction on the world's largest house.

The World's Largest Ancient City

Built in the mid-15th century, Machu Picchu is located 7,875 feet above sea level in the Urubamba Valley in Peru. A gorgeous collection of 150 structures, including temples and residences, the city was abandoned approximately 100 years after its founding and not re-discovered until the early 1900s. Machu Picchu was named one of the New Seven Wonders of the World in 2007.