"The Lisbon aquarium, voted the world’s best aquarium, is highlighted as an ideal solo attraction because you can linger at exhibits for as long as you want without feeling rushed." - Katie Jackson Katie Jackson Katie Jackson is a New York City-based writer who covers travel, food, and more. Her work has appeared in USA Today, The Sunday Times, Esquire, Outside, New York Post, and Travel + Leisure, among others. Travel + Leisure Editorial Guidelines