Eglukalns, as far as I know, is one of the favorite Latvian place in winter because it is one of the biggest hills in Latvia and there is the skiing route. But I was here during summer! To find this place is quite easy because there are the road signs telling which way to go but the road is OMG ... Poor car have to go on a very long time on the gravel road :)
Daugavpils fortress is located in the south-eastern Latvia in the city of Daugavpils which is located near the Lithuania and Belarus border. This fortress is a cultural heritage of Latvia.