Snow globes are limited edition collectable items in Fallout New Vegas and there are seven to be found plus another four from the DLC's. This tutorial will show you the location of all the snow globes and help you unlock the "Globe Trotter" achievement/trophy.

Goodsprings

On top of the back-left grave in Goodsprings Cemetery. It is found just in front of the headstone and amongst rubble.



Hoover Dam

In the Hoover Dam visitor center, sitting on the welcome desk next to a computer.



Mormon Fort

In the Old Mormon Fort. As soon as you enter the fort, turn right, go all the way to the corner, and enter the door to the tower. The snow globe is located upstairs on a shelf.



Jacobstown

Walk into Jacobstown lodge and the snow globe is on the reception desk right in front of you.



Nellis Air Force Base

As soon as you enter Nellis museum turn to your left and the snow globe is on a small table in the corner.



Lucky 38

In the cocktail lounge of the Lucky 38 Casino. The snow globe is on the counter "behind" the middle cash register with a green lamp next to it.



The Strip

In the Vault 21 Hotel, on the nightstand in Sarah's average-locked room in the northeast corner of Vault 21, next to the buy-able room.