We Have Google Cardboard!
It's a fun, immersive experience if you don't currently have the classroom budget to take your class to Paris or on a scuba adventure to view the Great Barrier Reef! Email me if you'd like a demo and I'd be glad to show it to you. We currently have two you can borrow but they're not expensive if you'd like to have some for your class (usually between $15-$30, but, remember, you need to have a smart phone available).
The Virtual Field Trip
Here's a direct link to browse through only their Streetview offerings. If you've never browsed through the rest of the Google Cultural Institute, it is full of useful resources.