Virtuoso recently unveiled its Hot 10 list at the 30th annual Virtuoso Travel Week in Las Vegas.

The global luxury travel network examined data from its U.S. agency members reflecting future travel for September through December 2018 to determine the 10 countries that have seen the largest percentage of growth in year-over-year bookings among upscale American travelers.

Turkey is all the rage this fall and winter, experiencing an incredible 310 percent growth in year-over-year bookings among U.S. travelers, according to Virtuoso. The destination also offers remarkable value for Americans at the moment as the Turkish lira is down against the dollar.

Despite its recent tourism struggles in wake of political unrest, Americans are buzzing over Egypt, which has seen a 264 percent rise in year-over-year bookings. Only Turkey has seen a larger percentage of growth.

Nearby, Morocco is also experiencing a notable rise in interest from Americans. The exotic and diverse destination has seen 144 percent growth in year-over-year bookings among U.S. travelers. The former imperial city of Marrakech is also one of the world's top 10 trending destinations.

India isn't far behind Morocco in terms of year-over-year growth in bookings among Americans, cementing itself as a destination on the rise thanks to its similarly impressive historic sites and many cultural experiences. Bookings to India are up 128 percent year-over-year.

The lone Caribbean representative in the Virtuoso Hot 10, the Cayman Islands has seen 124 percent growth in year-over-year bookings among Americans. In addition to its phenomenal weather and beaches, the British territory is a premier destination for adventure and wellness.

Fall and winter in America coincide with spring and summer in Brazil, making the South American country an easy choice for luxury travelers in search of warmer weather. Brazil might not be on everyone's radar just yet. Nonetheless, it's experienced a sizable 92 percent year-over-year growth in bookings among upscale Americans.

Israel is one of three destinations to rank in both Virtuoso's Top 10 and Hot 10 lists. In addition to being the fourth-most in-demand fall and holiday season destination among upscale Americans, it has seen 88 percent growth in year-over-year bookings among those travelers.

Each year, more and more U.S travelers are discoveringSwitzerland. The charming European destination is the 10th-most in-demand country for Americans seeking luxury travel experiences this fall and winter and has experienced 82 percent year-over-year growth in bookings.

Travelers looking to escape the cold and dive into a new culture this autumn and holiday season will likely be considering Indonesia, which has seen a 76 percent year-over-year growth in bookings among U.S. travelers.

The fastest-growing destination this summer, according to Virtuoso, Greece continues to see tremendous interest among fall and winter travelers hoping to experience one of the most historically significant countries in the world.