Parking Block Blue
A composite material composed of sand, stone, and cement. This block can not be upgraded and is likely only found in the creative menu.
Harvest drops
Small Stone× 25
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Destroyed Stone (75% of the time) where it lands.
Where to find (37 POIs)
7 Days Suites (tier 5), Champions Coliseum (tier 5), Calm Inn (tier 4), Close Encounters Gun Range (tier 4), Pineballs Bowling (tier 4), Restaurant Zelekt (tier 4), Super Shamway (tier 4), Town Hall (tier 4), 4 Ever Video (tier 3), Abandoned Office Building (tier 3), Buy-N-Go Grocery (tier 3), Crack-A-Cafe (tier 3), Midway Clinic (tier 3), Poopy Pants City Daycare (tier 3), Post Office #2 (tier 3), The Burgcaneer (tier 3), Three Dollar Store (tier 3), Uncle Ray's Supermarket (tier 3), Elite Essentials (tier 2), Mo Power Electronics (tier 2), Shamway (tier 2), Smarketing (tier 2), The Piggy Bank (tier 2), ZMB Radio Station (tier 2), Dirty Laundry (tier 1), The Book Barn (tier 1), BRR Ice Cream, Cleanico Center, Departure Plaza, Friendszone Sports Center, Midway Hospital, Navezgane Public Library, ParKing Lot, Quick Lube, Rogue Nerds Refuge, Shady Rest Area, The Joelton Hotel.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.