500 euro note rapidly so that in the first 7 years (up to December 2008) there were 530,064,413 five hundred euro banknotes in circulation. Subsequently, the rate of increase was radically slowed. In August 2018, there were approximately 515,000,000 banknotes in circulation (decreased from 614,000,000 in 2015). It is the second least widely circulated denomination, accounting for 2.4% of the total banknotes. It is the largest note measuring 160 × 82 mm and has a purple colour scheme. The five hundred euro banknotes depict bridges and arches/doorways in modern architecture (around the late 20th century). The five hundred euro note contains several complex
Banknotes of Denmark, 1997 series under ultraviolet light, are used on both sides of the banknotes. 50 kroner: The hologram alternately shows the figure 50, the Roman numeral L and a flower. Fluorescent effects: Centaur on obverse and green print on the reverse. 100 kroner: Hologram: Two musical notes, the Roman numeral "C." and the number "100." When the note is tilted the "C" grows larger and a rainbow appears. Using a magnifying glass, it is possible to see a microprinted "100" in the outer line around the letter "C." Fluorescent effects: Basilisk on obverse and orange print on the reverse. 200 kroner: Hologram: A