No. There are others, like San Marino and the Vatican, both being completely surrounded by Italy.
There is no country that is inside of Turkey. This type of situation only exists with Lesotho (entirely surrounded by South Africa) and Vatican City and San Marino (both entirely surrounded by Italy).
There are six landlocked countries in Africa that share their borders with only one other country. They are: Lesotho (shares border with South Africa) Eswatini (shares border with South Africa) Malawi (shares border with Mozambique) Burundi (shares border with Rwanda) Rwanda (shares border with Burundi) Eswatini (shares border with Lesotho)
The only countries surrounded by other countries in Europe would be San Marino and Vatican City, which are both surrounded by Italy. Vatican City is completely surrounded by Rome and is only one city. San Marino is composed of nine cities and is neighbored by numerous Italian cities in Northern Italy. Monaco could also technically be classified as being surrounded by France, however, its located on the French Mediterranean coast. Monaco is composed of six cities.
The following countries only border one other nation.CanadaHaitiDominican RepublicIrelandUnited KingdomPortugalMonacoSan MarinoVatican CityDenmarkThe GambiaLesothoSouth KoreaBruneiTimor-LestePapua New GuineaQatarThe only ones which are surrounded by another country are Lesotho, inside South Africa, and San Marino and the Vatican City, inside Italy. Some of the others are almost surrounded, but also have a sea coast.
There are 3, actually. Vatican and San Marino, both inside Italy, and Lesotho, surrounded by South Africa. That excludes countries that have access to the sea, like Monaco and Gambia.
Monaco is bordered only by France, but it is also a coastal country, so it is not completely surrounded by France.
Vatican
There is only one city in San Marino, called San Marino City. There are towns around the country, and with a population of less than 5000, San Marino City would not even be regarded as a city by many people and just be a town. San Marino as a whole only has a population of about 33,000 people.
Lesotho
Yes. It is the only country with 2 recognized nations within its borders (Vatican city and San marino).
The following countries are surrounded by the European Union but are not part of the EU: Switzerland + Liechtenstein, Andorra, San Marino and the Vatican City. Monaco borders on France (an EU member), but has a coastline so it is not completely surrounded. The Russian province of Kaliningrad also borders only on EU countries, but also has a coastline as well.