I took my first spherical panorama in 2007 but didn't get fully into the hobby until a few years later. Despite doing this for awhile, I'm still learning new techniques as I go. I take photos of anything & everything, particularly of offbeat places only the locals would know about (or maybe not know about); my primary themes include:
Mountain summits (including gigapixels)
Lakes/waterfalls/bodies of water
Glacial geomorphology
Geology
Historical sites
Places of mystery/tragedy/crime
Caves/mines/tunnels
Aerials
Abandoned ruins/places in decay
Fire lookout towers
Cemeteries/specific graves/veteran memorials
Night scenes/cityscapes
Floral & botany
Trashed & destroyed vehicles
Art scenes/one-of-a-kinds
Anything of sentimental value
Photographing has always been my pictoral diary as one never knows when something is going to change. Many of my adventures have been of solo exploration & I hope for many more.