Some books related to architectural tourism.

Theory:

Architourism

Edited by Joan Ockman.

Architecture and Tourism

Edited by Lasansky and McLaren.

Guides:

Cruising LA

By Tony Fuss.

Guide to Contemporary Architecture in America, Vol. 1

By Masayuki Fuchigami.

StyleCity

Guides to 10+ cities by various authors.

Wallpaper* City Guide

Guides to 20 cities by the editors of Wallpaper*.