… is a 16 mile long ice road in the European nation of Estonia. This road has a number of unique rules:
On this particular road, it is forbidden to wear a seatbelt: you
might have to make an unexpected and speedy exit from your car.You
can’t drive here after sunset, or with a vehicle over 2.5 tonnes. And
it is strictly illegal to travel at between 25 and 40km/h (16-25mph). At
those speeds, your car tyres will create dangerous vibrations that
could crack the surface of the road, sending you and your vehicle to a
watery grave.
You can read more – and see some pictures – here.