Celebrity Check-ins: 1 Credit: Uzo Aduba/Instagram Antarctica Uzo Aduba traveled to the “#7thcontinent” — Antarctica — making her “#7for7” in March 2018 and said, “This place is beautiful.” Celebrity Check-ins: 1 Credit: Uzo Aduba/Instagram Crystal Sound Martha Stewart traveled to Antarctica’s Crystal Sound in February 2018 and shared, “It’s very cold -we went to 66 latitude this morning.”