When was the last time a sitting U.S. President officially opened a Mosque......or Church or Synagogue?

Turkish FM Cavusoglu says, Pres @BarackObama accepted tentatively to open the Turkish Mosque in Maryland w Pres Erdogan “soon.” v #AA
— ilhan tanir (@WashingtonPoint) April 20, 2015

One Follower on Twitter was quick to give the following Info on my question, which was greatly appreciated. 

@MFS001 @20committee Islamic Center of Washington completed in 1954 and dedicated by President Dwight Eisenhower on June 28, 1957.
— Skip V. Patel (@TheFlying_Camel) April 20, 2015

@MFS001 @20committee President Bush Rededicates Islamic Center of Washington http://t.co/g0raPUA45c
— Skip V. Patel (@TheFlying_Camel) April 20, 2015

@MFS001 @20committee The Islamic Centre of WA is the NATIONAL MOSQUE of the USA
— Skip V. Patel (@TheFlying_Camel) April 20, 2015

@MFS001 @20committee I have visited that monstrosity. It is several times larger. than the biggest church in DC. pic.twitter.com/f05N0Y1pMG

— Skip V. Patel (@TheFlying_Camel) April 20, 2015

@MFS001 At the DC Mosque/Islamic Center all flags of Muslim countries are displayed, Old Glory is absent. pic.twitter.com/7roTRISLks

— Skip V. Patel (@TheFlying_Camel) April 20, 2015