Colombia
Tourist Visa Required? NO
Requirements

Valid U.S. Passport

Proof of Onward/Return Ticket may be requested

for stays up to 90 days

Business Visa Required? See below
Requirements:
 

For U.S. Passport holders traveling for business meetings only the Consulate has stated travelers can enter Colombia for 30 days with out a visa. For any other purpose besides business meetings a visa is required and the traveler must deal directly with the closest Colombian Consulate.

Requirements are based on Embassy/Consulate in : Chicago