This image shows the parlors of Andrew Jackson’s home, the Hermitage, as they would have appeared during his life.

The description states:
The Parlors at
THE HERMITAGE
Home of General Andrew Jackson
Seventh President of the United States
Nashville, Tennessee
–The visible chandelier is filled with candles as there was no electricity or gas at the time. As a result, the house would have been quite dark after sunset in rooms that did not have generous lighting such as this.
This card likely dates from the 1950s.

This image shows an almost identical view of the Hermitage from the previous posting, but with the benefit of people included to give a sense of scale to the building.

The description states:
THE HERMITAGE, the home of President Andrew Jackson is located 12 miles east of Nashville on U.S. 70 N. The handsome old estate has been preferred and appears just as it did in the days of “Old Hickory”.
–This card was used and is dated 17 June 1961.

This image shows the front of the mansion known as The Hermitage, built and owned by President Andrew Jackson.

The description states:
THE HERMITAGE – Home of General Andrew Jackson, Seventh President of the United States, Hermitage, Tennessee, near Nashville. Standing today just as it stood when he left it over 100 years ago is the class home of “Old Hickory”. Built in 1819, this historic shrine has successfully defied time and nature for 134 years. Although it was damaged by fire in 1834, it was restored immediately as it stands today.
–A calculation of the dates from the description above indicates this card dates from the 1950s.

This is a view of the altar in the Emmons Prayer Room, part of the Upper Room Chapel.

There is no description on the back of the postcard.  The Upper Room is a daily devotional publication distributed by the United Methodist Church to its congregations, which expanded into an international, multi-lingual ministry. It celebrated 75 years of publication in 2010 and is available electronically or by subscription to the print edition.
The image dates from the 1970s.

This is a polychrome wood relief of the Da Vinci fresco called The Last Supper. It is in the Upper Room Chapel.

The description on the back states:
The great polychrome woodcarving of Leonardo’s Last Supper, in the Upper Room Chapel, 1908 Grand Avenue, Nashville, Tennessee, 37203.
The postcard was used and has the postmark of July 28, 1977.
 

This is a photo of the faithful version of the Greek Parthenon in Athens, Greece. It originally was a temple to the goddess Athena Parthenos, or Athena in her manifestation as the protector of the city.

The card was trimmed top and bottom but doesn’t lose any of the main subject. The description states:
Nashville, Tennessee
Nashville’s Parthenon in Centennial Park is the only full sized replica of the world famous Parthenon of the Acropolis in Athens, Greece. This masterpiece of early Greek Architecture is 228′ in length, 101′ wide and 65′ high.
–While this card was not used, it is one of a few bought at the same time, one of which was mailed and postmarked, indicating this image is from the 1970s.

You see below a photo of the James K. Polk Hotel in Columbia, Tennessee. It still exists in the same location, and a search on Google maps in street view shows the buildings are almost the same as well.

The description on the back is quite detailed and specific:
James K. Polk Motel, Columbia, Tenn. Highway No. 31
For Reservations Phone EV8-4913
50 Units, Tile Bath and Showers, Simmons Furniture, Electric Heat, Air Conditioned, Beautyrest Mattress, Restaurant, T.V. and Telephones, Swimming Pool
–Perhaps most notable of all is the listing, in a small circle on the back next to the name, of a Putt-Putt Golf Course, a rare exception for modest motels such as this.
The design of the vehicles in the picture indicates this photo is from the early 1960’s