Why would you want to visit 6 continents in 86 hours? Answer: because you can. Now, pack your bags and guide books and fly or drive to Miami. Note: the official trip clock doesn't start until you get on your outbound flight in Miami. So, enjoy the beaches and the Cuban food before heading to Miami airport:

'Frommer's South Florida including Miami and the Keys'
'Fodor's Miami & Miami Beach 4th ed.'

Ready to go? Take a cab to the Miami Airport and catch Aeropostal's 11:30AM flight to Caracas, Venezuela.

Continent #2: South America

Three hours and 10 minutes after leaving Miami, you will be in the vibrant city of Caracas (2:40PM local time). There is lots to do and see here:

'Frommer's South America'
'Lonely Planet Venezuela (Lonely Planet Venezuela)'

But, you have only five hours before your next flight, so take a cab to Casa Farruco Restaurant and order the squid plate and cream sauce. Head back to the Caracas and catch Air Europa's 7:45PM flight to Madrid, Spain.

Continent #3: Europe

Eight hours and thirty minutes later, you will touch down at Madrid's airport (10:15AM local time). You have six hours and 40 minutes before your next plane, so take a cab to the world-famous Prado Art Museum and view Goya'a disturbing paintings. Next, go to El Botin and order suckling pig at this Hemingway favorite, which is the world's oldest restaurant. These guide books should come in handy in Madrid:

'Lonely Planet Spain (Lonely Planet Spain)'
'Madrid (Eyewitness Travel Guides)'

Head back to the airport an catch the 4:55PM Alitaila flight to Cairo, connecting in Milano. In Milano, you'll only have enough time to gulp down a cup of espresso in the airport coffee shop.

Continent #4: Africa

Seven hours and 45 minutes after taking off from Madrid, you'll land in Cairo (1:40AM local time). You have 14 hours before your next flight, so there is a lot of time for you to explore Cairo:

'The Rough Guide to Egypt'
'Let's Go 2003: Egypt'

I suggest that you head off to Giza, a Cairo Suburb, and watch the sun rise over the famous pyramids. Be sure to see the Sphinx. Next, go to Andrea Restaurant near the the pyramids and order warak einab (stuffed grapes leaves and chicken livers). There will still be plenty of time to visit a market or walk the banks of the Nile before heading back to the airport.

Take Gulf Air's 3:40PM flight to Singapore, connecting in Bahrain.

Continent #5: Asia

Ten hours and forty minutes after leaving Cairo, you will touch down in Singapore (local time 9:20AM). You have almost 11 hours before your next flight, so explore this dynamic city/state:

'Frommer's Singapore and Malaysia, Third Edition'
'Fodor's Singapore, 11th Edition: Where to Stay, Eat, and Explore, Smart Travel Tips from A to Z, Plus Maps and Co lor Photos (Fodor's Singapore)'

I suggest that you head directly to the famous Raffles Hotel, host to such literary luminaries as Maugham, Kipling, Conrad, and Coward. Go to the bar and order a Singapore Sling. It was invented at this bar. Next, head to one of Singapore's dozens of shopping malls, centers, and areas. There is still enough time to eat a meal at Li Bai Restaurant (try the crab fried rice) before heading back to the airport.

Catch Qantas Airways 8:00PM flight to Sydney, Australia.

Continent #6: Australia

When your plane touches down in Sydney seven hours and fifteen minutes later (5:15AM local time), you have just visited six continents in 86 hours. Three cheers for you! So, rest and enjoy Sydney's opera house and harbor:

'Frommer's Australia 2004'
'Australia (Eyewitness Travel Guides)'

If you want to do it a little slower . . .

Bone up on where you want to explore on each of the six continents:

'The Most Scenic Drives in America'
'Fodor's Canada, 27th Edition (Fodor's Gold Guides)'
'Frommer's Mexico 2004'
'Fodor's South America, 5th Edition: The Guide for All Budgets, Completely Updated, with Many Maps and Travel Tips (Fodor's Gold Guides)'
'Rick Steves' Europe Through the Back Door 2004: The Travel Skills Handbook'
'Lonely Planet South East Asia on a Shoestring (Lonely Planet Shoestring Guides)'
'Lonely Planet Australia (Lonely Planet Australia)'

Have a good trip!