Old Post Office Pavilion
Located just down the street from the White House, this building with its elegant clock tower was built in 1899. An example of the prevailing architectural design, Romanesque Revival, the building was turned into the Trump International Hotel Washington D.C. in 2016. However, the clock tower is still maintained by the National Park Service, thus is open to the public. While the Washington Monument is closed until 2019, the clock tower is one of the few public places in DC that offers an eagle-eye view of the nation's capital. The tower is open every day during business hours for tours.