Thailand :D

The Netherlands (Alkmaar, Amsterdam and Utrecht in particular).

Iguazu Falls (Argentina). Because of the powerful memories that persist years after the visit.

For me, I would have to say that living in Henry VIII's Hampton Court Palace for 5 days was the best place I have ever visited. We stayed at the Landmark Trust apartment there. Quite an experience, waking up every day in the palace, strolling the grounds at all hours of the night, etc.

But there are so many. And so many more to see and visit.

Namibia especially the sand dunes

Niagara Falls - really! It sounds cheesy and touristy but I am an exercise freak and jogging in front of the falls and upriver early in the morning was incredible. I had the whole place practically to myself and it was a great experience. Also taking the boat trip and all those walking tours behind and down the falls was great. The power and fury of those falls is amazing. On the American side you can actually walk down, reach over the scaffolding and put your hand in the falls.

I've been to Europe and South America numerous times but Niagara Falls is the trip that really stands out in my memory.

Munich Germany is a very close second. MMM, beer.

I must admit, I did not like Paris. I found it simultaneously scummy and pretentious with ubiquitous, bothersome streethawkers. Oh well, to each his own, that's what makes the world go round.

Mr Canuck and I really enjoyed our trip to Oman a few years ago.

And we want to retire for part of the year to France, where we lived for a couple of years.

Paris
Quebec City
Alaska (Juneau & Skagway)
Vancouver

All for different reasons.

I loved Inis Mor, one of the Aran Islands in Ireland. It was so outside my lifestyle but it became like home. Leaving on the ferry has become one of the saddest and emptiest moments of my life. On the same trip we spent time in Killarney National Park which was stunningly beautiful and in stark contrast to the Aran Islands (which were all rock and only made farmland by locals bringing up sand and seaweed from the beach to create fertile dirt on which to grow grazing grass). OK ... well ... maybe I just loved all of Ireland. That is, with the exception of the 21% VAT. Yucky!

Looking forward to my next visit someday.

I've had many great experiences in many great places but, perhaps because it was so short, my day trip to Capri, from Sorrento, is my top memory.

I will probably answer differently every time, but right now I'd say Petra, in Jordan.

Some of my more favorites:

Thunder Pass, Rocky Mt. National Park
Cape Breton, Nova Scotia
Scotland - many places there
London
Santa Barbara
Yellowstone
The Outer Banks, North Carolina
Cape Cod National Seashore

So many of my favorites are due to experiences had there - had x not happened, would I love y as much?

Salzburg
Venice
San Francisco
Middle of the Atlantic (on Transatlantic Crossing)

Leticia, Colombia on the Amazon River. It's where Peru, Brazil and Colombia meet

Koh Samui
Phuket
Bora Bora
Norway