Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

A haunting tribute to pioneering photographer Clover Adams.

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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

This historic rec center in the heart of Israel is a bastion of peace and togetherness.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

This archaeological site was the center of the extinct Yarmukian culture which developed the first roads and pottery in Israel.

Dozens of elegant ceramic tiles decorate these ancient walls, each displaying the Lord's Prayer in a different language.

One of only two towns in Israel populated by Circassians, a sect of Sunni Muslims who are also devoted to Israeli military service.

A secluded fortress from the days of the Crusades that offers breathtaking views.

The only quarter of the Old City not dedicated to a major world religion.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

A geometric jumble of homes.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

An iconic view point of the Sea of Galilee offers a look into Israel's past.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

Sitting right on the border between East and West Jerusalem this modern art museum is in itself a symbol of Israel's hoped-for unity.