From musketeers to amigos, wishes to stooges, good things come in threes. That’s also true for this London deal, which lets you spend your third night at the acclaimed Park Lane Hotel absolutely free.

OK, we know what you’re thinking—surely you’ll have to pay sky-high rates for the first two nights, right? As the Brits would say, “That’s bloody madness.” That’s right dear reader, we found rates as low as $282 per night when booking this package—over $200 less per night than the standard rate for a single night at this luxurious, centrally located property—and that’s before factoring in the free night! So you really are getting everything for nothing on your third night’s stay…bringing your adjusted nightly rate under 200 bucks .

What do we mean by “everything?” Twenty-four-hour concierge service, a brand-new fitness facility and full afternoon tea served in an art deco courtyard. Knightsbridge, Bond Street and the West End theaters are within walking distance, and we think you’ll like the neighbors—Buckingham Palace is literally across the street.

If you think this free third night’s a charm, be sure to sign up for our weekly travel alert. In it, we tell you about jolly-good travel deals like this one, so you can vacation like Her Majesty without pawning the crown jewels.

You may not be friends with Rosa, the Duchess of Ferrari, but that doesn’t mean you can’t go on vacation to celebrate her Aug. 24 birthday. Now through Aug. 30, you can stay at the 50-acre Playa del Carmen residence she once called home for a special birthday rate of just $395 a night, with the fourth night free.

During your stay at Esencia, the 29-room private estate in which the lucky Ms. Rosa used to reside, you’ll experience the ultimate in accommodations, complete with 12-foot ceilings, 600-thread-count sheets and 24-hour private chef and butler service. The beach is steps from your front door, the property’s gourmet restaurant is right around the corner and Playa del Carmen’s vibrant nightlife is just 20 minute away. Indulge in a massage or facial at the on-site spa, which is the first such establishment in the Riviera Maya to incorporate organic fruits, plants and herbs (most of which were grown on-site) into its treatments. The spa also offers complimentary group yoga and meditation classes in its colorful garden.

Starting to like this Rosa gal? You’ll absolutely love her if you stay at Esencia on her actual birthday—on that day, all guests will enjoy complimentary food, non-alcoholic beverages and spa treatments in her honor.

So start humming “Happy birthday to you,” and after you book a trip in honor of your good pal Rosa, click to sign up for our weekly travel alert. In it, we tell you about the greatest luxury travel deals on earth, so when someone decides it’s time to celebrate, you can be sure you’re invited to the party.

If a hotel with a prime location in downtown Montreal was to offer its guests their third night free, you’d call it a great deal. If an elegant boutique property was to give away rooms for $140 a night, you’d marvel at the bargain. But if those two hotels were one and the same, you’d start to wonder whether someone had hacked into their reservations system and played a practical joke.

Well, if it’s a hack, take advantage of it fast, because Le Meridien Versailles-Montreal is now offering rooms from $140 a night and the third night free. That means you’re averaging $93 a night with a three-night stay—not bad for a four-star hotel. This gorgeous property is located in the heart of downtown Montreal, with the city’s best shopping, galleries, antiques and nightlife within easy walking distance. It is also home to the award-winning Brontё, a chic Mediterranean restaurant with artfully prepared dishes that are almost too pretty to eat.

Rooms at this intimate hotel are spacious and well-appointed, complete with dark woods and panoramic windows that can be opened to let the sounds and smells of the European-like city waft inside. A 24-hour fitness center with a dry sauna will soothe you after a long day of sightseeing, and Brontё’s full American breakfast will add a spring to your step every morning.

If you like deals that are so good you almost feel guilty snatching them up, be sure to sign up for our weekly travel alert. In it, we tell you about more sinfully great travel bargains like this one, so when hackers strike (or so it seems), you’ll be the first to know.

Don’t worry about what to get Berlin’s Kempinski Hotel Bristol  for its 111th birthday—all it really wants is to be stayed in. So much so, in fact, that the flagship of the distinguished Kempinski brand is now offering its rooms to people like you and me for around $173 per night. (Hint…or well, solution: $173 is about 111 Euro, at least today).

I know, I know, there’s not even a name for the 111th anniversary of something (somewhere between “centennial” and “quasquicentennial”), but the Kempinski is getting proud in its old age and wants to show itself off. Before you write the joint off as senile, however, you should know that the “grande dame” of Berlin hotels has earned its bragging rights, and updates have kept it competitive in a city that has likewise reinvented itself since the Wall came down in ‘89.

The Kempi is located on one of Berlin’s most famous avenues, the Kurfürstendamm—call it the Ku’damm if you’re trying not to act like a tourist. This places the hotel smack-dab in the middle of the capital city’s leading upscale retail neighborhood—the Champs-Élysées of Berlin—where one can find shops by Bvlgari, Gucci and Lacoste, amazing restaurants and interesting architecture.

From July 1 through August 28, 111 Euros will allow you to stay in one of the Kempi’s individually-designed rooms, sleep on a Tempur mattress by request (go for it) and enjoy the hotel’s beautiful pool, sauna, steam room and fitness center, all while soaking up a piece of German history. The hotel’s famed breakfast buffet will cost you extra, but word is, it’s well worth it.

Take advantage of this rate while you can, since next year they’ll have to charge at least 112 Euros. Oh, and sign up for our newsletter to get deals worth celebrating delivered to your inbox every Thursday.