Old Town Square.

Old Town Square (Czech: Staroměstské náměstí) is a historic square in the Old Town quarter of Prague in the Czech Republic. Located between Wenceslas Square and the Charles Bridge, Prague's Old Town Square is often bursting at the seams with tourists in the summer. Featuring various architectural styles including the gothic Týn Cathedral and baroque St. Nicholas Church, the square is an oasis for travelers wearied by Prague's narrow streets. Among many churches, tourists may find the Astronomical Clock on this square, while the tower at the Old Town Hall offers a panoramic view of Old Town. – Wikipedia

Vltava river.

"The Vltava (German: Moldau) is the longest river in the Czech Republic, running north from its source in Šumava through Český Krumlov, České Budějovice, and Prague (Praha), merging with the Elbe (Labe) at Mělník." – Wikipedia

Street performers on the Charles Bridge.

"Charles Bridge (Czech: Karlův most) is a famous historical bridge that crosses the Vltava river in Prague, Czech Republic." – Wikipedia

Saint Vitus's Cathedral.

"Saint Vitus's Cathedral (Czech: Katedrála svatého Víta) is a Roman Catholic cathedral in Prague, and the seat of the Archbishop of Prague. The full name of the cathedral is St. Vitus, St. Wenceslas and St. Adalbert Cathedral. Located within Prague Castle and containing the tombs of many Bohemian kings, this cathedral is an excellent example of Gothic architecture and is the biggest and most important church in the country." – Wikipedia

The Prague Astronomical Clock.

"The Prague Astronomical Clock or Prague Orloj is a medieval astronomical clock located in Prague, the capital of the Czech Republic. The Orloj is mounted on the southern wall of Old Town City Hall in the Old Town Square and is a popular tourist attraction.

The Orloj is composed of three main components: the astronomical dial, representing the position of the Sun and Moon in the sky and displaying various astronomical details; "The Walk of the Apostles", a clockwork hourly show of figures of the Apostles and other moving sculptures; and a calendar dial with medallions representing the months." – Wikipedia

The Church of Our Lady in front of Týn in the old town square.

"The Church of Our Lady in front of Týn (in Czech Kostel Matky Boží před Týnem, Týnský chrám or just Týn) is a dominant feature of the Old Town district of Prague, Czech Republic, and the main church of this part of the city since the 14th century. Towers of the church are 80m high and topped by four small spires.

Prague (Czech: Praha), is the capital and largest city of the Czech Republic. Its official name is Hlavní město Praha, meaning Prague, the Capital City. Situated on the River Vltava in central Bohemia, Prague has been the political, cultural, and economic centre of the Czech state for more than 1100 years." – Wikipedia

Charles Bridge in Prague.

"Charles Bridge (Czech: Karlův most) is a famous historical bridge that crosses the Vltava river in Prague, Czech Republic. Its construction started in 1357 under the auspices of King Charles IV, and finished in the beginning of 15th century. As the only means of crossing the river Vltava (Moldau), the Charles Bridge used to be the most important connection between the Old Town, Prague Castle and adjacent areas until 1841. Also this 'solid-land' connection made Prague important as a trade route between east and west Europe. The bridge was originally called the Stone Bridge (Kamenný most) or the Prague Bridge (Pražský most) but has been the "Charles Bridge" since 1870.

The bridge is 516 meters long and nearly 10 meters wide, resting on 16 arches shielded by ice guards. It is protected by three bridge towers, two of them on the Lesser Quarter side and the third one on the Old Town side. The Old Town bridge tower is often considered to be one of the most astonishing civil gothic-style buildings in the world. The bridge is decorated by a continuous alley of 30 statues and statuaries, most of them baroque-style, erected around 1700.

During the night Charles Bridge is a quiet place. But during the day it changes its face into a very busy place, with painters, owners of kiosks and other traders alongside numerous tourists crossing the bridge." – Wikipedia