May 1999

New York

July 1999


September 1999

East Coast Infrastructure

November 1999

Bay Bridge

August 2000

Caltrain Electrification

September 2000

Vanished Embarcadero

A21 Design

January 2002

High Speed Rail Investment

July 2002

San Francisco Freeways

August 2002

Berlin Hauptbahnhof

Travel, Food, and Hobbies

About Architecture 21 and Link Library

Special Issue - 2006

Bus-Only Lanes

Special Issue - 2008

Bay Area Regional Rail

Special Issue - 2005

California High Speed Rail

A21 Design is the journal of Architecture 21, Inc., showcasing research, projects, advocacy, and general interest stories.

January 2020


August 2022

Caltrain DTX 1993