Like a delicious sandwich filling one side of the canal, water color on the other side of the tram track, jingle and leiden square, Leidseplein, is one of the two famous commercial plazas in the center of amsterdam. Rembrandt square and leiden square are known for Amsterdam nightlife. Leiden Square, located southwest of Amsterdam's Grachtengordel district, facing the northeast of the Sinwell Canal; Leiden Street (Leidsestraat), Weteringschans, Marnixstraat meets. Leiden Street was originally the carriageway to Leiden; Leiden Square is the starting point of the carriageway. It can also be said that Leiden Square has nothing to do with Leiden today, like Nanjing Road in Shanghai. By the way, Leiden is a western Dutch city, northeast of The Hague, about 40 minutes drive from The Hague and Amsterdam. Leiden was built in the 12th century like a castle group. It is now one of the largest cheese and cattle markets in the Netherlands. Leiden Square, the most famous is the Stadsschouwburg Theatre, like a landmark, the tourists in this area at night are like weaving, colorful; During the day, it is also bustling with restaurants, cafes, bars and hotels in the square and adjacent streets. The sandwiches include heart, cheese, beef patties canal, water color, reflecting the bustling and boat track trams, jingle, shuttle history and legends