^^FYO, Dave & Connor did not send to sequesterville due to Dave's leg injury and was flown back to the U.S. with Connor. Instead, Chuck & Wynona joined the sequsterville after their elimination in Switzerland.
In Season 15, Zev & Justin weren't the third team sent to sequesterville, but with issues on Zev's lost passport in Cambodia.
I read a post on TARFlies many years back, here's the list of "Sequesterville/Elimination Station" locations:
TAR1 - A hotel in Paris, France
TAR2 - Mexico
TAR3 - Portugal
TAR4 - Chiang Mai, Thailand
TAR5 - Mexico
TAR6 - France
TAR7 - Mexico
TAR8 - Orlando, Florida (is that really sure?)
TAR9 - Portugal
TAR10 -
TAR11 - Mexico
TAR12 - Portugal
TAR13 - Mexico
TAR14 - Koh Samui, Thailand
TAR15 - Phu Quoc, Vietnam
TAR16 - Puerto Vallarta, Mexico
TAR17 - Acapulco, Mexico
TAR18 - Thailand
TAR19 - Thailand
TAR20 - Mexico
TAR21 - Portugal
TAR22 - Sicily, Italy?
TAR23 - Mexico
TAR24 - Thailand
TAR25 - ?