www.noambit.com has a neat little tour that you can download and put onto any ipod or MP3 player. It's called a "turn 'n tour" because you kinda stand in the center of the historic square and just spin around as the guide tells you all about the history, architecture and places to go from there. My favorite part is learning how to actually read the big astronomical clock.

Step into the Old Town Square in Prague and journey back in time, 600 or 700 years. As you stand in awe, the dramatic history of Prague permeates the air.

The Old Town Square (Staromestske Namesti) is one of two main squares in the city centre (the other is Wenceslas Square, 5 minutes walk away). With its ancient buildings and magnificent churches, this is one of the most beautiful historical sights in Europe.

The Old Town Square's most notable sights are the Church of Our Lady before Tyn, the Old Town Hall Tower & Astronomical Clock and the stunning St. Nicholas Church.