The images were captured last summer when Google technicians worked with Tauck and its maritime partner Scylla to mount one of Google's 'Trekker' cameras to the forward deck of Tauck’s Treasures riverboat. Over the following days, the Trekker captured imagery of the river across Slovakia, Croatia, Serbia, Hungary, Bulgaria and Romania.
The Trekker creates a 360-degree panoramic view with the help of 15 lenses, each pointed in a different direction. The views captured by the different lenses are then digitally 'stitched' together, resulting in the full panorama. Viewers can change their viewpoint, looking up, down, left and right, by moving their computer mouse.
Areas captured by the Trekker during its time aboard Treasures include imagery spanning the six countries on the river route from Bratislava, Slovakia, to Cernavoda, Romania. Highlights include Bratislava Castle in Bratislava, Slovakia, the Chain Bridge and Hungarian Parliament Building in Budapest, Hungary, and the Franciscan Monastery and Church of St. Philip in the Croatian city of Vukovar.
The Trekker also caught 360-degree views of Treasures' Compass Rose dining room, Panorama Lounge, Sun Deck and other areas. All of the images were just uploaded to the collection of 'Street View' panoramas on the Google website.