3D artist Philip Modin developed a website with an online library of spherical HDR images.
Here you can find 44 spherical HDR images of the urban environments with a 14 megapixels resolution (5.376 x 2.688px).
All images are in EXR format and are available for commercial use on a free basis or for a voluntary donation. Download here: https://www.hdrvault.com/
