San Isidro, Buenos Aires

It maintains sister city relationships with Herzliya, Israel; Nagoya, Japan; and San Isidro, Peru.

The sloping plaza, home to the recently opened Rugby Museum, hosts an antiques and crafts fair.

The plaza leads down to the Río de la Plata, where the riverside park is popular with mate drinkers and tourists.

The San Isidro Hippodrome is one of Argentina's most important race courses and covers a large part of the area inland from the city.

Built in the striking 1930s architectural style, the race track has faced tough times since the economic crises of the late 20th and early 21st centuries.