At the northern reaches of the Mississippi, Tunica is one of the South’s leading entertainment destinations. Just 20 minutes from Memphis, it’s home to nine casino resorts and three championship-level golf courses, as well as Tunica RiverPark, the Tunica Queen Riverboat and the soon-to-open Gateway to the Blues Museum. Tunica is a popular starting point for the Mississippi Blues Trail, a scenic highway that winds through Mississippi and takes you to historic blues markers and landmarks.

The former home of three of America's founding fathers, and the current home of the University of Virginia, the city of Charlottesville, Virginia is suffused with an appreciation of history and intellectual vigor. Take a tour of the university campus and walk through grassy malls and grand buildings designed by Thomas Jefferson, or peak into the dorm room once occupied by Edgar Allen Poe. The great homes of America's early presidents, Monroe, Jefferson and Madison, are also open to the public.

Once a destination for honeymoons and family vacations, Niagara Falls has really stepped it up as an action-packed vacation spot. The falls are literally the biggest draw – watching the frothy water tumble at alarming speeds can be mesmerizing. Throw on a poncho and hop aboard the Maid of the Mist to cruise close enough to the falls to be drenched by spray. Hit the main strip of Clifton Hill for flashy tourist attractions and restaurants galore.

La Fortuna de San Carlos is at the center of an array of geological wonder. The nearby Arenal is Costa Rica's most active volcano, routinely bursting with lava and ash, and the Catarata de La Fortuna is a waterfall pouring from a seventy-meter cliff. The Tabacon Hot Springs are a relaxing intermission in the midst of the various spectacles, and the Leaves and Lizards Arenal Volcano Cabin Retreat is a blissful end to any day's excursion.

Just two hours north of London by rail, the city of York holds 1900 years' worth of history in its ancient walls. The Romans built the city in 71 AD, and the Vikings captured it in 866 AD. Stop by the Yorkshire Museum and Gardens for a look at what the Roman and Vikings left behind (they must have packed light when they left). From there, move on to the York Castle Museum for a not-so-quick overview of the most recent 400 years.

The Algarve's sunny shores offer perfect escapes for all types, from those seeking the hot nightlife of flashy, energetic Lagos to those desiring secluded stays in rambling Sagres. Portugal's most southerly region offers historical attractions in former Moorish capital Silves and fascinating Tavira, great golf, fabulous beaches from Praia da Luz to Armacao de Pera, thermal springs at Caldas de Monchique, and miles of limestone caves and grottoes, cliffs and bays along its rugged coastline.

Thermal pools are Caldas Novas’ cure-all and starring attraction, but the resort town’s charms go beyond hot, mineral-rich water. Add pretty parks, sunshine, and Corumbá Lake, and you’ve got one of central Brazil’s most relaxing places.