I thought it might be good to have a running list of where each person on here has traveled.  That way, we would know who to ask for more info and advice when planning a trip.  This might be a great one to Sticky.  Be sure to come back and edit after you take a new trip.

I'll start:

UNITED STATES:

Alabama: Birmingham, Montgomery

Arizona: Flagstaff, Phoenix, Tucson, Grand Canyon, Sedona

California: San Francisco Bay Area, Mendocino, Humboldt, Los Angeles, San Diego, Anaheim, Santa Cruz, Yosemite National Park

Colorado

Florida: Orlando, St. Augustine, P Beach

Georgia: Savannah

Illinois: Chicago

Iowa: Des Moines, northwest

Louisiana: Baton Rouge, New Orleans

Maryland,

Massachusetts: Boston

Montana: Glacier National Park

Nevada: Las Vegas, Reno

New Mexico: Albuquerque, Roswell

New York: New York City

North Carolina: Fayetteville

Ohio: Sandusky, Amish Country

Oregon: Portland

Pennsylvania: Philadelphia

South Carolina: Charleston

South Dakota: Mount Rushmore

Texas: San Antonio, Del Rio (Lake Amistad)

Utah: Salt Lake City, Bryce, Zion, Moab

Virginia: Arlington National Cemetary  

Washington: Seattle

Washington D.C.   

Wyoming: Yellowstone National Park

NORTH AMERICA:
Canada (Vancouver, Victoria)

Mexico (Cabo San Lucas, Puerto Penasco, Ensenada)

Costa Rica 

EUROPE:

Austria, Germany, Italy, The Netherlands, England, France, The Czech Republic, Greece, Spain, Vatican City

ASIA:

- Japan

That's a great post! Here's my list:

Switzerland (yeah, that's where I live :-))

USA:
- Route66 from Chicago to LA
- Las Vegas
- all Florida
- NYC

The Caribbean:
- St. Lucia

Asia:
- Thailand: Bangkok and Koh Samui
- China: Shanghai

Australia: all of it, including Tasmania

Europe:
- Italy
- Germany
- Austria
- Belgium
- Netherlands
- England
- France
- Monaco
- Denmark
- Greece (Athens, Samos, Lemnos, Santorini, Naxos)
- Cyprus
- Canary Islands

Africa:
- Tunisia

as well as:
- Dubai
- the Maldives

Love this idea!

We've been alot of places, especially in the US so I'm just going to include my favorites that I could advise people on if they're planning a visit.

USA:

• CA: San Francisco
• NY
• NJ (live there)
• DE
• MA: Salem and Concord
• CT: Foxwoods Casino (huge, love it)
• MO: Branson
• PA: Phili and Lancaster and the ski areas
• FL: Orlando and the Keyes
• LA: New Orleans
• NC: Asheville (got married at the Biltmore Estate there)
• NV: Las Vegas
• Niagara Falls
• TN: Gatlinburg (hiking trip)
• VA: Skyline Drive
• MD: Baltimore, Inner Harbor
• VA: Williamsburg
• VT: Killington and Smugglers Notch

Europe:

• Ireland (southern, did a self-drive tour and stayed in castles)
• Switzerland: Lucerne
• The Netherlands: Amsterdam and Edam
• UK: London, Poole, Bath, Devon
• Paris

Caribbean and Mexico:

• Riviera Maya, Mexico
• Cayman Islands

Central America:

• Costa Rica (did a self-drive across the country and stayed in many places - love CR)

Most of the East coast of the US, still missing few states.

EU:

• CT (Meriden)
• NY (the 5 borroughs)
• NJ (from Millford to  East Brunswick and Atlantic City)
• PA (Franklin Mill Mall)
• DE (New Castle)
• MD (where I live)
• DC (where I work)
• VA (from VA Beach to McDowell, from Arlington to Emporia)
• NC
• SC (Savannah, Sumter and Cross)
• GA
• FL (Orlando, from Stuart to the Keys and across to Naples and going back north to Tampa and part of center FL, JUST LOVVVEEEE FL)
• IL (Chicago)
• West VA (casinos)

Caribbean:

• Puerto Rico (where I grew up)
• Dominican Republic
• St. Lucia (next May honeymoon)
• St. Martin (next May honeymoon)

US

NJ - familiar with the entire state*

NY - NYC*

CT - Stamford

MA - Boston

PA - Philly

MD - Baltimore

FL - South Beach, Orlando, Jacksonville

TN - Gatlainburg

CA - LA

NV - Vegas

Canada - Vancouver*, Calgary, Toronto

Aruba

Anguilla*

St. Marten - French side

Costa Rica -Monteverde*, La Fortuna/Arenal, Osa Peninsula*

Spain - Madrid, Sevilla, Granada

England - London, Bath

Italy - Rome, Florence

Switzerland- Zurich

Philippines- Manila, Quezon City, Pangasinan, Boracay, Palawan, Pampanga, Bagio, Banue rice terraces

Hong Kong

Australia - Sydney*, Uluru*, Alice Springs, Brisbane, Ailie Beach, Hamilton Island

* my favorites

USA (live in New York)

New Jersey- shopping! lol no taxes!

Vermont- Stowe, Burlington

Massachusetts- Boston, Somerville/Medford

Rhode Island- Providence, Newport, all around pretty much

Pennsylvania- Philadelphia, Hershey Park

Maryland- Baltimore, Ocean City

Delaware/Virginia/North Carolina- driven through

South Carolina- Hilton Head, Charleston

Georgia- Athens, Atlanta, St. Simon's Island

Florida- Tallahassee, Jacksonville, Orlando, Tampa, Clearwater, Sarasota

Canada- Montreal

The Bahamas- Nassau, Paradise Island

Mexico- Cancun

Greece- Athens, Patra, Thessaloniki, Halkidiki, Santorini, Mykonos, Kefalonia, Zakynthos, Naxos, Rhodes, Lefkada, Paros, Ios

Italy- Rome, Florence, Venice

France- Paris

Europe