"CopenHill is Copenhagen's first ski area — carefully constructed atop a waste management center for the city. In the summer months, visitors can also hike, run, or tackle the world's tallest climbing wall at this urban recreation destination." - Maya Kachroo-Levine Maya Kachroo-Levine Maya Kachroo-Levine is the digital senior editor at Travel + Leisure. She covers hotels, destinations (focusing on Europe, Asia, California, and Mexico), food and drink, cruises, and l