This document discusses several techniques for valuing historical monuments, antiques, artifacts, and books. It provides an example of valuing the Taj Mahal using an inflation-adjusted approach, estimating its value between $5.5 trillion to $20 billion depending on assumed annual maintenance costs. It also discusses factors that determine the value of antiques, collectibles, and books, such as demand, rarity, condition, provenance, and desirability. Methods for appraising items include the cost, sales comparison, and income approaches.