As one of the world's largest hydroelectric dams this plant took two countries to get built.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

With its vast selection of books, comics, and records, this nearly 70-year-old open-air market always rewards the patient browser.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

A tower devoted to — and modeled after — the Divine Comedy.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

This no man's land slicing through the island is strewn with abandoned relics of another time.

An ancient capital city that dates back 3,000 years and harbors many surprises.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

The Cape of Good Hope is not quite as low as you can go on the African continent, but it's still geographically significant.

This colonial fort is an intriguing example of Renaissance military architecture.

Giant aluminum tusks erected over the main thoroughfare to commemorate a visit by Queen Elizabeth II.

Not your average art gallery, this massive center hosts 8,000 works from artists across Africa—and it’s free to the public.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

A massive Montreal stadium that has seen nothing but trouble since its inception.

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

Montreal's colorful subway station shows its support of the local LGBT+ community.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.