Go City provides unlimited admission sightseeing passes in 15 North American travel destinations. It offers Go City Cards and Explorer passes for over 425 destinations at low prices. Destinations include The Empire State Building, Sea World and the Museum of Science. It ranks 78th on the Inc. 500 list of fastest growing companies. Customers are happy with the customer service and prices at Smart Destinations.Go City provides unlimited admission sightseeing passes in 15 North American travel destinations. It offers Go City Cards and Explorer passes for over 425 destinations at low prices. Destinations include The Empire State Building, Sea World and the Museum of Science. It ranks 78th on the Inc. 500 list of fastest growing companies. Customers are happy with the customer service and prices at Smart Destinations.