Hanoi (Ha Long Bay), Vietnam

Dotted with thousands of limestone islets, Ha Long Bay is a breathtaking World Heritage Site that calls out to be explored. Hop on a kayak or take a boat tour to get close to these jungle-capped karst wonders or explore the caves inside. If history draws you, head 60 miles west to Hanoi, the capital of Vietnam for 1,000 years. Rich in native and French colonial influences in architecture, it has been called the "Paris of Asia." The grounds of the Temple of Literature and ancient university are particularly stunning.