
There are seven verses
in the first sura (chapter)
in the Qur'an.

During the rituals of Hajj, the pilgramage to Mecca,
pilgrims walk around the Kaaba seven times.
The Kaaba is the most sacred site of Islam. Muslims believe it was rebuilt by Abraham and his son Ishmael.
The well was given the name Zam Zam. The water from the Zam Zam well is sacred to the Muslims. Now a day’s pilgrims may walk between the two hills in air-conditioned tunnels.
Pilgrims are also required to throw seven pebbles at each of the three walls representing the Devil. The "Stoning of the Devil" is preformed at Mina, just outside of Mecca.
In the Qur'an chapter 18 we can read about the Seven Sleepers as told by Muhammad. God had sent the angel Gabriel to reveal the story of the Seven Sleepers to Muhammad. The name of chapter 18 is "The Cave".
The Night Journey and the Seven Heavens

The Dome of the Rock. The Muslim Shrine built over the Temple Rock in Jerusalem. It is said that this is also the very same site that the Temple of Solomon and Herod's Temple once was.

It is told that Muhammad one night flew on the winged steed, named Buraq, from Mecca to Jerusalem.
He was accompanied by the Archangel Gabriel.
He landed on the Temple Mount. His journey continued from the Temple Rock through the Seven Heavens until he met Allah. He met earlier profits in each of the Heavens.
Muhammad met with Allah and asked about the number of times each believer is to pray every day. The number five was agreed on. Muhammad returned safely to Mecca the very same night.

The Seven Heavens in Islam:
Heaven
Prophet
One
Adam
Two
Yahya (John the Baptist)
Three
Yusuf (Josef)
Four
Akhnukh (Enoch)
Five
Harun (Aaron)
Six
Musa (Moses)
Seven
Ibrahim (Abraham)
"The Night Journey of Muhammad" 1514 Metropolitan Museum of Art, New York City
The Seven Gates of Hell
Jahannam is the Koranic word for hell. The unbelievers, the followers of Iblis (the devil) and the jinns will be driven to Jahannam, which is a place of fire that keeps burning at all times. Jahannam has seven gates which are open at all times. (Qur'an - Sura 15:44). Hell also has seven layers and sinners are sent to different layers according to their sins.
Aqiqa – When a baby is seven days old
Aqiqa is a Muslim custom in honor of a new born child. When the new born child is seven days old, the hair is shaved off and the child is given a name. Immediately after the child has received a name, sheep are slaughtered.
Two sheep (or goats) are sacrificed if the baby is a boy and one sheep if the baby is a girl. This is a feast day. It is encouraged that some of the meat (a third) is given to the needy. Not all Muslims celebrate Aqiqa.