6. Brussels
The capital of Belgium AND Europe, Brussels is filled with 17th-century buildings and daily flower markets.
What You Should Do While Here: See Brussels’ very own Eiffel Tower, the Atomium. It provides great views, inside and out. Also, needless to say, get some chocolate and waffles. Belgium has some pretty outstanding selections. And absolutely do not allow yourself to miss out on the many Art Nouveau buildings. One of the best ways to do so is to spend some time at one of the Art Nouveau cafes where you can enjoy chocolate AND architecture. Win-win.
Potential Safety Concerns: No major concerns; take necessary precautions.