The wonders of Old San Juan
through the eyes of an architect!


Two medieval castles, the second-oldest church in the western hemisphere and two UNESCO-designated World Heritage Sites are some of the unique world-class sites you will find within the historic walls of Old San Juan. I invite you to experience these and other unknown historic buildings, urban spaces and features in a unique architectural walking tour through this beautiful 500-year old walled city -the oldest within the US territory.

While in Old San Juan, enjoy a fun cultural activity enriched with amazing and entertaining information. Discover unknown facts and hidden places that you will not find with any self-guidebook or tour guide in Puerto Rico. Experience an exclusive tour where I will share with you my 20-plus years of experience as a historical architect and preservation expert working on the study, conservation and protection of this city and its fortifications.

It doesn’t matter if you are a first time visitor, coming to Puerto Rico for business or pleasure, or a local resident, looking for an original and fascinating experience for yourself, for an out-of-town friend or a client. Share a walking tour with me and you will never see Old San Juan the same way again!




Karen González-Jensen, M. Arch.
Historical Architect
Founder - ARCHTOURS


About Archtours

Archtours is the only local company in Puerto Rico that offers architectural tours of Old San Juan and its forts. Tours are given by local historical architect and preservation expert Karen González-Jensen and are focused on the world class built heritage and unique history of Old San Juan and Puerto Rico. Our tours are based on facts -they are not “food” or “ghost” tours- and are intended for the history and architecture enthusiast who wants to enjoy a memorable activity while getting to know accurate, interesting and fun information about the Puerto Rican history, architecture and culture.

Archtours is endorsed by the Puerto Rico Tourism Company and authorized by the National Park Service to offer tours within their facilities.