Here's a look at the week ahead on our "Sunday Morning" Calendar:
On Monday, President Trump meets with Russian President Vladimir Putin in Helsinki.
Tuesday sees the start of the Special Olympics 50th Anniversary Celebration in Chicago.
- 50th Anniversary Celebration Concert (July 17-21)
- Follow @SpecialOlympics on Twitter, Facebook, Instagram and YouTube
Wednesday is Nelson Mandela International Day, marking the 100th anniversary of the birth of South Africa's anti-apartheid champion.
- Nelson Mandela Foundation
- Nelson Mandela's journey from prisoner to president (CBS News, 12/07/13)
- Nelson Mandela: The political prisoner who would change a country (CBS News, 12/07/13)
- Music a powerful ally in Mandela-led revolution (CBS News, 12/07/13)
- Footage from Nelson Mandela's first known TV interview discovered (09/01/16)
- Complete CBSNews.com coverage: Nelson Mandela
Thursday kicks off the Lumberjack World Championships in Wisconsin.
- Lumberjack World Championships, Lumberjack Bowl in Hayward, Wis. (July 19-21) | Purchase Tickets
- Follow @LumberjackChmps on Twitter, Facebook and Instagram
Friday is Mars Day at the Smithsonian's Air and Space Museum in Washington – its annual tribute to the Red Planet.
- Mars Day at the National Air and Space Museum, July 20, 10:00 a.m.-3:00 p.m.
- Follow @airandspace on Twitter, Facebook, Instagram, Pinterest and YouTube
- Mars Exploration: Facts, Images, Videos (NASA)
And on Saturday, the 82nd annual Garden State Cat Show opens in Edison, New Jersey.