Hard: Rock

These are strongly bonded igneous, metamorphic, or sedimentary rocks like granite, basalt, and marble .

, a homemade treat created by boiling sugar, corn syrup, and water until it reaches the "hard-crack" stage (300°F). Hard Rock

In technical fields, "hard rock" refers to the physical composition of the earth’s crust. These are strongly bonded igneous

It emphasizes the electric guitar, often featuring repetitive riffs and complex solos. or sedimentary rocks like granite

It uses a differentiation strategy to sell a "Rock & Roll experience" rather than just food.

Boasting over 80,000 items, it is the world’s largest collection of music history.