The USA National Bonsai and Penjing Collection hosts a number of world-famous and must-see bonsai. One of them is my personal favorite, a 150 year in training Trident Maple bonsai.
Also Goshin, Penelope, and the pine that survived Hiroshima can be found here. All great inspirational trees which can help you grow better bonsai. Have you ever seen a 4 ft wide Ficus bonsai? Or a 200 year old Pine bonsai?
0:00 Bonsai and Penjin Museum
0:10 My favorite Bonsai, a trident Maple Bonsai
0:35 Entering the Museum
0:54 World famous pine bonsai
2:14 John Naka's Goshin bonsai forest planting
3:06 Nick Lenz' Western Hemlock Bonsai
3:45 Bjorn Bjornholm @Eisei-En Picea Bonsai
4:18 Amazing ancient root over rock trident maple bonsai
4:40 Bonsai Maintenance in Musea
5:15 Understanding Penjin
6:14 Amazing Bonsai landscape
6:37 Windswept away Elm Bonsai!
7:10 Understanding Satsuki Azalea Bonsai
7:48 Amazing Zelkova Bonsai
8:26 Cutting-grown Japanese cork-bark Black pine bonsai
9:10 Insane 50 year old Landscape Bonsai Planting
9:45 Nick Lenz' Penelope Bonsai (Larch over Statue)
11:05 Tropical (Ficus and Jabuticaba) Bonsai