Niveau: Colorado: Tallest Mountains

Niveau: Europe: WW2 Events

Niveau: Germany: State Capitals

Niveau: Slovakia: Cities

Niveau: Sweden: municipalities in Östergötland County

Niveau: The U.S.: 10 Tallest Mountains by State

Niveau: The U.S.: Acquisitions of Territory, 1783-1853

Niveau: The U.S.: Cities in the West

Niveau: The U.S.: City Nicknames

Niveau: The U.S.: Civil War Events

Niveau: The U.S.: Major Cities

Niveau: The U.S.: State Abbreviations

Niveau: The U.S.: State Capitals in the West

Niveau: The U.S.: States in the Midwest

Niveau: The U.S.: UNESCO World Heritage Sites

Niveau: UEFA EURO 2020

Niveau: World: Continents

Niveau: ░ Sri Lanka: Province Flags

Niveau: ░ World: Flags (Difficult Version)