Here are a few of our favorites from the Greater and Lesser Washington Flickr pool this week.

Rows of similar, yet differently painted houses appear in many places around the region. Here are some in Alexandria. Photo by matturick.

A pedicab downtown. Photo by mosley.brian.

Well armed Park Police. Photo by nevermindtheend.

A walk on the C&O Canal. Photo by djhanson.

The now-demolished bus garage in Ballston. Photo by Aaron Webb.

Join the Flickr group and submit your own photos! Photos will ideally depict either great or not-so-great features of a part of the Washington, DC region, showing people, roads, parks, stores or buildings as beautiful and lively places filled with people, or unsightly or desolate places that could be greater.

One specific request: We could especially use photos of SmarTrip cards. This one from Mr. T in DC has gotten used many a time, but we try not to repeat more than necessary. There are a number on Flickr that aren’t CC licensed. If you get any photos of your SmarTrip, please CC license them and/or post them to the pool. Thanks!

David Alpert is Founder and President of Greater Greater Washington and Executive Director of DC Sustainable Transportation (DCST). He worked as a Product Manager for Google for six years and has lived in the Boston, San Francisco, and New York metro areas in addition to Washington, DC. He lives with his wife and two children in Dupont Circle. Unless otherwise noted, opinions in his GGWash posts are his and not the official views of GGWash or DCST.