Text: It's an excellent focal point, giving new visitors an easy reference to establish their location; it's a spectacular vantage point for many of the city's great landmarks; and its bridges and quays offer history, entertainment, shopping and exercise.
Entailment: It provides a perfect landmark suited to helping visitors determine their location in the city.
Contradiction: The city is very uniform in its composition, so it's easy to get lost in the sea of similar-looking buildings.