The largest place of worship in the Baltics, measuring 187 x 43m, with walls two metres thick, Riga Cathedral also has one of the biggest organs in Europe (6,768 pipes!). It was such a marvel in its day that Franz Liszt composed a piece of music in its honour. The drop from Cathedral Square (Doma laukums) to the church's base shows how the level of the city has risen in the 800 years since its foundations were laid on the site of a Livonian fishing village. Although currently undergoing renovations, it’s still open to the public. The price of the ticket also includes access to its Romanesque cloister.