Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Comprehensive and concise architectural review

This compact (easily fits in backpack) guide has clear photographs of most every notable building, monument, and structure in Barcelona. Its main sections are divided by timespans, not geographically, but there's an index in the back that displays where each structure is located in the city. The book was essential for touring, to answer the "what was that?" question when some of Barcelona's incredible architecture presented itself. Each entry contains lots of detailed information, such as building name, address, year built, architects, builders, and sculptors, as well as a concise narrative on what is significant about this structure.