Some may simply go to sleep early, so they can be energized for an early New Year's Day hike—perhaps while wearing underwear that suits their mood, and wishes for the New Year.

For the more adventurous, we offer rewards beyond mere sightseeing—from a three-day hike across the Grand Canyon to a ride along China's Yangtze River.

The railway involves a natural monopoly: the only other way of getting to the ruins is a four-day hike along the Inca Trail.