As for your Europe trip, I highly recommend spending 3 nights in any city you visit. If you change cities every day or every other day you’ll end up spending most of your holiday on trains or in airports rather than seeing the places you flew all that way to see. So if Amsterdam and Barcelona are musts, I would add exactly one other city if you’ve only got 9 days. Unfortunately it’s not on your list, but the best and easiest one to add between them is Paris. There is a train from Amsterdam to Paris in a bit over 3 hours, and another high-speed train to Barcelona from Paris in 6 hours 27 minutes with no changes. Paris is easily one of the most impressive European cities for tourists, but if you’ve been there before and don’t want to go again you can obviously choose something else.
There are always those travelers who celebrate the end of summer and the opportunity to don a sweater and take out the wool scarves and quilted jackets. For them, Iceland would be a perfect destination, with a chance to see the Northern Lights and adorable sled dogs. Montreal is another place with a winter chill, and at the end of the month, you might even find an early Christmas market. San Antonio gets into the holiday spirit at the end of November as well. Sedona offers chilly nights and gorgeous scenery, while Hilton Head Island still enjoys autumn weather and activities.
For those looking for an even calmer slice of paradise without all the holiday festivities, try Waimei on Kauai’s southwestern shore, which offers calm waters and sandy beaches that are especially attractive in the early winter months. Get away from all the gloomy weather of the East Coast by trying out a Waimea vacation rental—it’ll definitely make for makes the perfect base to explore all Kauai has to offer.
Santa Barbara has earned its nickname, “The American Riviera,” with its stunning coastline, lush landscapes, cafes, restaurants, and year-round Mediterranean-like weather. Sandy beaches invite sunbathers, and for those interested in more activity, there’s biking, paddle boarding, surfing, and kayaking. In the heart of Santa Barbara County wine country, the city presents more than two dozen downtown tasting rooms on its “Urban Wine Trail.” The artsy “Funk Zone,” with a variety of cleverly designed eateries and shops, is just blocks from the beach. The community is recovering from devastating fires and mudslides, and its resilience is apparent with new hotels, restaurants, and attractions. The Montecito neighborhood, particularly hard hit by the tragic events, is home to the recently renovated Montecito Inn and its new dining venues, Phillip Frankland Lee's The Monarch, and the suave Chaplin’s Martini Bar, commemorating Charlie Chaplin, one of the hotel’s original owners when it was built in 1928. The elegant oceanfront Four Seasons Resort The Biltmore Santa Barbara offers a luxurious spa and views of Butterfly Beach. Less than two hours north of Los Angeles, Santa Barbara celebrates the holiday season with colorful lights, a Holiday Parade (Dec. 7), Harbor Boat Parade with fireworks (Dec. 16), European-style Christmas market, and the traditional "Nutcracker Suite" at the Granada Theater.
Southeast Asia is easier to deal with, and there are cheap flights connecting in the Middle East and landing in Bangkok, Kuala Lumpur, and Singapore. Each of those is a very interesting city, and there are many smaller places to go in the same region. In Malaysia there is Penang and Melaka. In Thailand there is Chiang Mai and quite a few others in that area. In Laos you can visit Luang Prabang, which sounds like it could be a winner for you. And there is also Siem Reap, which is home to the amazing Angkor Wat temple complex.