Hosted by Phil Keoghan, it featured eleven teams of two, each with a pre-existing relationship, competing in a race around the world to win US$1,000,000.

This season visited four continents and ten countries and traveled over 40,000 miles (64,000 km) during twelve legs.

Engaged couple Freddy Holliday and Kendra Bentley were the winners of this season, while dating couple Jon Buehler and Kris Perkins finished in second place, and exes Adam Malis and Rebecca Cardon finished in third place.

[1] CBS also delayed the airing of season 6 until late in the fall and moved it out of its proposed Saturday timeslot in order to create a "cool down" period between races, in the hopes that this would help continue the newfound ratings success.

The Amazing Race made its first trip to seven new countries: Iceland, Norway, Sweden, Hungary, Sri Lanka, Ethiopia, and Senegal.

Throughout the season, host Phil Keoghan verbally stated this rule when introducing each leg's Roadblock.

[4] This season featured a visit to Sri Lanka, where filming occurred just a few months before the 2004 Indian Ocean earthquake and tsunami.

A special message was inserted at the beginning of the episodes in Sri Lanka, dedicating them to the victims and to those helping with the recovery.

In Dakar, Senegal, Kendra Bentley, who had previously decried being in "ghetto Africa" complained, "This city is wretched and disgusting.

[24][25] Bentley later claimed that her comments were taken out of context saying, "I was actually talking about the government and how they put people in these situations.

"[27] Later in the episode, Jonathan Baker, angry at his wife, Victoria Fuller, for picking up his bag which he had dropped during a footrace to the mat, shoved her.

He was modestly rebuked at the mat by Phil Keoghan, who saw Jonathan berating his wife but hadn't witnessed the shove.