TransforMap - There are Plenty of Alternatives. TransforMap makes them visible.
Google Street View - With Street View you can explore the world at street level.
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Instant Street View - Instant Street View is a Google-powered street viewing website.
Facebook Places - Let your friends help you discover restaurants, hotels, museums and more.
GeoGuessr - GeoGuessr is a new way to explore the world in a gaming style.