Flag of Rio Grande do Sul, Brazil.

More about Rio Grande do Sul: https://en.wikipedia.org/wiki/Rio_Grande_do_Sul
Image from https://commons.wikimedia.org/wiki/File:Bandeira_do_Rio_Grande_do_Sul.svg

Flag of Alajuela, Costa Rica.

More about Alajuela: https://en.wikipedia.org/wiki/Alajuela_Province
Image from https://commons.wikimedia.org/wiki/File:Bandera_de_la_Provincia_de_Alajuela.svg

Flag of Rocha, Uruguay.

More about Rocha: https://en.wikipedia.org/wiki/Rocha_Department
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Rocha_Department.svg

Flag of Venezuela.

More about Venezuela: https://en.wikipedia.org/wiki/Venezuela
More about the flag: https://en.wikipedia.org/wiki/Flag_of_Venezuela
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Venezuela.svg

Flag of Sa Kaeo Province, Thailand.

More about Sa Kaeo Province: https://en.wikipedia.org/wiki/Sa_Kaeo_Province
Image from https://commons.wikimedia.org/wiki/File:Sa_Kaeo_Flag.png

Flag of Argentina.

More about Argentina: https://en.wikipedia.org/wiki/Argentina
More about the flag: https://en.wikipedia.org/wiki/Flag_of_Argentina
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Argentina.svg

Flag of Philippines.

More about Philippines: https://en.wikipedia.org/wiki/Philippines
More about the flag: https://en.wikipedia.org/wiki/Flag_of_the_Philippines
Image from https://commons.wikimedia.org/wiki/File:Flag_of_the_Philippines.svg

Flag of Valparaíso, Chile.

More about Valparaíso: https://en.wikipedia.org/wiki/Valpara%C3%ADso_Region
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Valparaiso_Region,_Chile.svg

Flag of Dubrovnik-Neretva County, Croatia.

More about Dubrovnik-Neretva County: https://en.wikipedia.org/wiki/Dubrovnik-Neretva_County
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Dubrovnik-Neretva_County.png

Flag of South Africa.

More about South Africa: https://en.wikipedia.org/wiki/South_Africa
More about the flag: https://en.wikipedia.org/wiki/Flag_of_South_Africa
Image from https://commons.wikimedia.org/wiki/File:Flag_of_South_Africa.svg

Flag of La Rioja Province, Argentina.

More about La Rioja Province: https://en.wikipedia.org/wiki/La_Rioja_Province_(Argentina)
Image from https://commons.wikimedia.org/wiki/File:Bandera_de_la_Provincia_de_La_Rioja.svg

Flag of Seychelles.

More about Seychelles: https://en.wikipedia.org/wiki/Seychelles
More about the flag: https://en.wikipedia.org/wiki/Flag_of_Seychelles
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Seychelles.svg

Flag of Treinta y Tres, Uruguay.

More about Treinta y Tres: https://en.wikipedia.org/wiki/Treinta_y_Tres_Department
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Treinta_y_Tres_Department.svg

Flag of Los Ríos, Ecuador.

More about Los Ríos: https://en.wikipedia.org/wiki/Los_R%C3%ADos_Province
Image from https://commons.wikimedia.org/wiki/File:Bandera_de_Los_R%C3%ADos.svg

Flag of Kingdom of Talossa, a micronation.

More about Kingdom of Talossa: https://en.wikipedia.org/wiki/Talossa
Image from https://commons.wikimedia.org/wiki/File:Flag_of_the_Kingdom_of_Talossa.svg

Flag of Amapá, Brazil.

More about Amapá: https://en.wikipedia.org/wiki/Amap%C3%A1
More about the flag: https://en.wikipedia.org/wiki/Flag_of_Amap%C3%A1
Image from https://commons.wikimedia.org/wiki/File:Bandeira_do_Amap%C3%A1.svg

Flag of Morobe, Papua New Guinea.

More about Morobe: https://en.wikipedia.org/wiki/Morobe_Province
Image from https://commons.wikimedia.org/wiki/File:Flag_of_Morobe.png

Flag of Glacier Republic, a micronation.

More about Glacier Republic: https://en.wikipedia.org/wiki/Glacier_Republic
Image from https://commons.wikimedia.org/wiki/File:Glacier_Republic_Flag.svg

Flag of Totonicapán, Guatemala.

More about Totonicapán: https://en.wikipedia.org/wiki/Totonicap%C3%A1n_Department
Image from https://commons.wikimedia.org/wiki/File:Bandera_Totonicap%C3%A1n.svg

Flag of Dominion of Melchizedek, a micronation.

More about Dominion of Melchizedek: https://en.wikipedia.org/wiki/Dominion_of_Melchizedek
Image from https://commons.wikimedia.org/wiki/File:Flag_of_the_Dominion_of_Melchizedek.png