Free to visit but extremely crowded midday — go before 8am or after 9pm for a manageable experience. Tossing a coin is a beloved tradition kids love; explain the legend beforehand. The surrounding streets are narrow and cobblestoned — stroller navigation can be tricky. Several cafes and gelato spots are within a 2-minute walk for a post-visit treat.

Address: Piazza di Trevi, 00187 Roma, Italy

Google Maps: Click here for directions

Cost: Free