Time in a Bottle is a hit single by singer-songwriter Jim Croce (January 10, 1943 - September 20, 1973).  its lyrics dealing with mortality and the wish to have more time to 'to do the things you want to do, once you find them'.
For fingerstyle Guitar solo or Guitar and voice.
Easy to Early Intermediate.
With standard notation and tablature. With Lyrics.
Pages: Four (4).

This is My Father's World is a Christian hymn written by Maltbie Davenport Babcock.. When Rev. Babcock lived in Lockport, New York, he took frequent walks along the Niagara Escarpment to enjoy the overlook's panoramic vista of upstate New York scenery and Lake Ontario, telling his wife Katherine he was "going out to see the Father's world". He died in 1901 at age 42. Shortly after his death Katherine published a compilation of Babcock's writings entitled Thoughts for Every-Day Living that contained the poem "My Father's World". The poem was set to music in 1915 by Franklin L. Sheppard, a close friend of Babcock. The tune name, Terra Beata, means "Blessed Earth" in Latin.
Guitar and voice (Guitar classical or acoustic). Easy.

With standard guitar notation and tablature (TAB). With melody line. With Guitar chords.
With downloadable mp3 for audio help or sing along.

Pages: Three (3) pages.

The Lord's Prayer is a musical setting of the Lord's Prayer written by Albert Hay Malotte in 1935 and recorded by numerous singers and groups.

For Guitar fingerstyle (Classical or acoustic guitar).

With guitar tablature. With guitar chords.With melody line. With lyrics.
Intermediate.
Pages: 4 pages, 2:15' min.

Under Paris Skies is a song initially written for the 1951 French film Sous le ciel de Paris, directed by Julien Duvivier.
Thanks to Juliette Greco and subsequent recordings by artists such as Edith Piaf and Yves Montand the song became a symbol of Paris and France for the whole world.
The English version was titled "Under Paris Skies". It was recorded in that form by Andy Williams, Bing Crosby, Sam Cooke and many others. The melody of the song is used as a background for the song "Live Circus" on the concert album Glitter and Doom Live by Tom Waits.
For fingerstyle Guitar solo.
With standard guitar notation and guitar Tablature.
With finger positions suggestions.
Early Intermediate.
Guitar in drop D tuning (low E to D).
Five (5) pages, 2:50' min.

Unchained Melody is a 1955 song with music by Alex North and lyrics by Hy Zaret. It has since become a standard and one of the most recorded songs of the 20th century, most notably by the Righteous Brothers.
For Guitar.
With standard notation and tablature. With some fingering position suggestions.
With Lyrics. With Guitar chords.
Easy.
Pages: Three pages (3).