Tsarigradsko shose is the largest boulevard

Boulevard

A Boulevard is type of road, usually a wide, multi-lane arterial thoroughfare, divided with a median down the centre, and roadways along each side designed as slow travel and parking lanes and for bicycle and pedestrian usage, often with an above-average quality of landscaping and scenery...

 in the capital of Bulgaria

Bulgaria

Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

, Sofia

Sofia

Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

. It begins from Orlov Most

Orlov most

Eagles' Bridge is a bridge over the Perlovska River in the centre of Sofia, the capital of Bulgaria. It gives the name to the important and busy juncture at which it is located...

 (Eagle's Bridge), before which it is called Tsar Osvoboditel Boulevard

Tsar Osvoboditel Boulevard

Tsar Osvoboditel Boulevard is a boulevard in the centre of Sofia, the capital of Bulgaria. It lies between Orlov most to the east and Nezavisimost Square to the west, where it merges with Knyaz Aleksandar Dondukov Boulevard to form Todor Aleksandrov Boulevard west of the square...

, and in the end becomes part of the Trakiya motorway

Trakiya motorway

The Trakia motorway or Thrace motorway, designated A1, is a motorway currently in construction in Bulgaria. It is planned to connect the capital of Sofia with Burgas on the Black Sea through Plovdiv and with Kalotina on the Serbian border. The motorway is named after the historical region of...

 (A1). It runs from the north-west to the south-east. The maximum allowed speed on Tsarigrad Road is 80 km/h between Orlov Most and Gorublyane neighbourhood.

To the south the boulevard borders with Sofia's largest park, the Borisova Gradina

Borisova gradina

Borisova gradina or Knyaz-Borisova gradina is the oldest and best known park in Sofia, the capital of Bulgaria. Its construction and arrangement began in 1884 and it is named after Bulgarian Tsar Boris III....

, which hosts the National Stadium Vasil Levski and Bulgarian Army Stadium. A number of departments of the Bulgarian Academy of Sciences

Bulgarian Academy of Sciences

The Bulgarian Academy of Sciences is the National Academy of Bulgaria, established in 1869. The Academy is autonomous and has a Society of Academicians, Correspondent Members and Foreign Members...

 are situated along the road in the area of the Forth Kilometer Square, as well as the Ministry of Foreign Affairs, the Polygraphic plant and several hotels including the emblematic Pliska Hotel. In the outskirts of the city there are a lot of hypermarkets and office buildings constructed along the boulevard.

The boulevard bears the old Bulgarian name of the city of Istanbul

Istanbul

Istanbul , historically known as Byzantium and Constantinople , is the largest city of Turkey. Istanbul metropolitan province had 13.26 million people living in it as of December, 2010, which is 18% of Turkey's population and the 3rd largest metropolitan area in Europe after London and...

 (medieval Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

), Tsarigrad

Tsargrad

Tsargrad is a historic Slavic name for the...

, as it leads southeastwards out of the city, towards Plovdiv

Plovdiv

Plovdiv is the second-largest city in Bulgaria after Sofia with a population of 338,153 inhabitants according to Census 2011. Plovdiv's history spans some 6,000 years, with traces of a Neolithic settlement dating to roughly 4000 BC; it is one of the oldest cities in Europe...

and Istanbul.