Sight seeing charms in .925 sterling silver.
Landmarks and flags. Recognisable monuments and national flags, several enamelled — colour is what makes a flag charm work at all.
Building a travel bracelet. Charms bought one destination at a time turn a bracelet into a record of where someone has been. Silver keeps the running cost sensible.
See also U.S.A. Destination charms, tropical destinations, flag charm pendants and all Charm Pendants.