Europe's largest thermal lake is reputed to work wonders on various medical conditions. The lake's healing waters and therapeutic mud have provoked a healthy stream of health tourists. Visitors can experience its beneficial effects in spas and hotels or for the authentic Heviz experience, bathe in the lake itself.

Billund is built on LEGO. The city is home to a LEGO factory, which produces the lion's share of the world's plastic building bricks, and a theme park, LEGOLAND.

Caleta de Fuste (also known as El Castillo) is a rollicking tourist destination with wide beaches and outdoor sports, including sailing, diving, and windsurfing. Travelers enjoy sharing the blue waters with the  turtles and dolphins, as well as hitting the greens at the luxurious Fuerteventura Golf Club.  If you're looking for equal parts adventurous-trip and relaxation-central, you'll find it here with a day of snorkeling or trike riding followed by lounging on the serene sand beaches.

The charming Vietnamese capital has aged well, preserving the Old Quarter, monuments and colonial architecture, while making room for modern developments alongside. Hanoi may have shrugged off several former names, including Thang Long, or "ascending dragon," but it hasn't forgotten its past, as sites such as Ho Chi Minh's Mausoleum and Hoa Lo Prison attest. Lakes, parks, shady boulevards and more than 600 temples and pagodas add to the appeal of this city, which is easily explored by taxi.