Vast plains, such as those of Xanthi and Komotini, fertile valleys, such as the Evros valley, great rivers, rich vegetation, and forests with many trees mark the region. The lakes and wetlands of Thrace are among the most important in Europe with perhaps more than three hundred protected species of birds. The flora has drawn the attention of ecologists. It is built on the location of ancient Xantheia and is justly proud of the many old houses and mansions which are prime examples of local architecture. A Byzantine castle dominates its surroundings from the top of a nearby hill to the north of town.
Picturesque monasteries lurk among the pine-wooded hills.
P orto Lagos , an attractive fishing village is nearby, as are Avdira , Mesimvria , and Maronia . Further to the northeast, is scenic K omotini, capital of the district of Rodopi . The forts of the area, which date from pre-Christian times to the Byzantine era, are of special interest. Finds from all of the archaeological sites in Thrace are displayed in the Komotini Museum. A lexandroupoli , the capital of the district of Evros , is a seaside town known for its fine sandy beaches.