Experience complete silence in an anechoic chamber, a room designed to absorb all sound reflections. Visit Orfield Laboratories in Minneapolis (holds a Guinness World Record for the quietest place on Earth at -24.9 dB(A)) or the anechoic chamber at Microsoft's Building 87 (known for testing audio equipment). The extreme silence can be disorienting, and visitors often hear their own heartbeat and internal bodily sounds.
The world's oldest and largest spaceport.
Straddle both hemispheres at the equator monument outside Quito.
Step inside a working base like Port Lockroy or Vernadsky, post a card from the worldโs southernmost post office and meet the scientists.
Infobox