As a tourist of Berlin, the fun of exploring the place starts right upon your arrival at the airport. This is through the kind of transport you will take. There are actually several Berlin transport options you can choose from:
The most popular of these is the JetExpressBus TXL which can take you into the center of the city anytime you arrive because this bus has daily departures and travels around the city for 30 minutes without traffic. This stops at main stations like Alexanderplatz and Unter den Linden.
Alternatively, you can also get a taxi that travels from Tegel (TXL) airport to Mitte for only 20 euro. This is a good option if you want to spend a longer time in sight-seeing the place. Believe it or not, your taxi driver can act as your tour guide along the way—telling you some of the details of every erected building—until you reach your hotel.

U-Bahn and S-Bahn: Rides to Take When Touring Around Berlin
The U-Bahn and S-Bahn are the easiest way to tour around Berlin. These two are train networks that cross the city traversing at different points to make traveling easy, especially when you start to understand the line map.  These lines come in diverse colors so you can easily distinguish the route of each.
The is composed of 10 lines and runs underground. The S-Bahn, which is also known as Stadtbahn (city railway) is composed of 15 lines, running from the center to the suburbs. Several of the S-Bahn lines run in the same tracks; so, you have to take a closer look on the indicator boards to spare you from catching the wrong train.

The Conventional Type of Berlin Transportation: Berlin Buses
Public transport in Berlin stretches beyond the pathways with hundreds of bus lines—making a dense network on the ground. Many bus stops in central part have displays illustrating the arrival time of every bus. There is also nothing for you to worry about getting lost because the stops are being announced inside the bus.
If you would like to get a better view of the outside, you should prefer to get on a bus instead of on a U-Bahn or S-Bahn. This way, you will not only enjoy the view of the place, but familiarize with the area.

Many bus lines here are double-deck, giving you greater comfort and greater chance to do sight-seeing and relaxation. Views are better to look at when you sit in the upper deck. When taking this type of Berlin transportation, don’t dare forget to validate your ticket in front of the driver.