Retaining Wall Block
Retaining wall blocks are interlocking concrete or masonry units used in landscaping to build low retaining walls for soil retention and aesthetic enhancement.
Estimated value as of 2026 · Source: Previous known value; current block prices start at $3.40 (2025)
Fun Fact
Interlocking concrete blocks are popular for DIY projects due to their ease of installation without mortar or special tools.
Price History
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Snow Plowing
Snow plowing is a professional service using plow trucks to clear snow from driveways, sidewalks, and parking areas for residential and commercial properties in the United States.
Grand Piano (Steinway & Sons Model D)
Professional-grade concert grand piano with 9-foot frame.
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Average total cost of a 4-year degree at a public university (in-state).
Rolex Daytona 'Paul Newman' 1969
A rare 1969 Rolex Daytona Reference 6239 with exotic dial, the iconic sports chronograph worn by actor Paul Newman for 15+ years.