Unusual, for a U.S. city anyway, the streets of the Savannah Historic District form a grid linking a series of large green squares, meaning that in our time you’ll encounter a pleasant city park every few blocks, once you’re in the city center. The modern streets and squares hew to a plan implemented by James Oglethorpe, founder of Georgia.

“Oglethorpe laid out the city around a series of squares and laid out the streets in a grid pattern,” the Georgia Historical Society says. “Each square had a small community of colonists living around it and had separate lots dedicated to community buildings.

“Noble Jones was the first surveyor in the new colony and helped Oglethorpe fulfill his dream of a planned city. Oglethorpe also worked with Colonel William Bull to lay out the new city. Bull came from South Carolina and served as the city’s first architect, overseeing the design and construction of the earliest buildings.”

We did two long walks through the historic city, one each last Sunday and Monday. The first walk was guided, following a straight course on Bull Street from Johnson Square through to Wright Square, Chippewa Square, Madison Square — crossing the remarkably picturesque Jones Street — and Monterey Square, ending at the rectangular Forsyth Park and its impressive fountain. We also crossed Oglethorpe Street; like in many cities, old pioneers later became streets.

Our second walk was more meandering, starting near Colonial Park Cemetery and heading north toward the Savannah River, which we eventually reached, exploring the cobblestoned streets and alleys and brick buildings that used to be the heart of the waterfront cotton market. These days, the place attracts tourists en masse to its restaurants, bars and shops, and we joined the masse for a little while, taking in the view of the Savannah River and the Talmadge Memorial Bridge.

Savannah has one of the lusher downtowns I’ve ever seen, marked by a profusion of tall trees and bushes and ground cover. The squares were especially lush places.

Flowers, too, though I think there will be more as spring matures into summer.

Some of the streets were almost as lush. This is Jones Street, famed for its handsome houses, but also shady trees. You’re going to need shade most of the year in Savannah.

Many of the squares feature memorials of one kind or another. In Johnson Square stands a memorial to Nathanael Greene, Quaker general of the Revolution who had a gift for inspiring pyrrhic victories among his British opponents. Not only is this a memorial to Greene, he’s buried under it.

A design by William Strickland, the Philadelphian who moved to Nashville who did the Second Bank of the United States, Tennessee State Capitol and a lot else besides.

In Chippewa Square, Gen. Oglethorpe stands looking out toward the state he founded,  maybe enjoying the shade as well. Designed by Daniel Chester French, dedicated in 1910.

Casimir Pulaski, swashbuckling Polish cavalryman who died during the Siege of Savannah, is honored in Monterey Square with a memorial by Robert Launitz.

A number of other historic figures are honored in the squares, some of whose memorials we saw, such as that of William Jasper, a soldier who also died in the Siege of Savannah; John Wesley (as mentioned yesterday); and railroad exec William Washington Gordon, who was also a mayor of Savannah.

Gordon’s sizable late 19th-century memorial was built on top of the grave of Tomochichi, the Indian chief who allowed Oglethorpe to settle the site that would become Savannah. Tomochichi’s grave had previously been the site of a memorial to Native leader, but that had been lost to time before the Gordon memorial was erected. An interesting, if convoluted story, is told in academic detail here. Tomochichi has a separate memorial near the Gordon memorial.

A good many other memorials are scattered here and there in the squares and in between.

At the southern edge of the historic district is Forsyth Park, at 30 acres much larger than any of the city squares.

The park’s centerpiece is a splendid fountain, installed in 1858 and a creation of the same Bronx foundry that did the U.S. Capitol dome and, later, railings for the Brooklyn Bridge, among many other projects.

As charming a park as you’ll find anywhere. Sometimes life is a walk through the park, or better yet, through a lush historic district.