A few firsts I experienced in Amsterdam:
Small bird stickers on the huge train station windows keep birds from smacking into them.
Lights go from red to yellow to green.
Bitterballen, a bar snack that tastes like deep-fried gravy with bits of meat.
Soap dispensers that sprayed soap in a fine mist.
Soft and salty licorice.
Brie with a big hole in the middle of the wheel, making for easy slicing.
Sex with a prostitute. (Okay, three prostitutes.)