1 / 4   The Bohemian Crown Jewels rest on a cushion for a public display marking the 100th anniversary of the founding of Czechoslovakia in Prague, Czech Republic on Monday. /VCG Photo

2 / 4   The Bohemian Crown Jewels are on show at the Vladislav Hall of Prague Castle until Jan. 23. /VCG Photo

3 / 4   The jewels were shown to the public nine times in the 20th century and this exhibition is the fifth in the 21st century. /VCG Photo

4 / 4   The crown jewels, including a crown, orb, and scepter, are kept in a vault in St Vitus’ Cathedral. The chamber has seven locks, and seven significant Czech figures including President Milos Zeman hold the keys. /VCG Photo