Have tea in a cemetery with a dazzling view of Istanbul.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

Eat your way through history.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

The world's oldest soul food restaurant is also one of its best.

Decades before the scandal, this staircase on the river was a literal "water gate."

A super-sized promotional trick that is now a D.C. landmark.

A nostalgic bibliographic gem.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A painfully obvious spy house sits right across the street from the Russian Embassy.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A small brick parlor house and artist's studio located in the wilderness is surrounded by imposing suburban palaces.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

In 1889, a small group of women began meeting to discuss literature, art, and other topics. Their every-other-week salon grew into a lending library that still exists today.

This site is believed to be connected to the oldest house in Arlington County.