An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The "lovely red Vega" of the legendary record-settling pilot.

A nostalgic bibliographic gem.

A public statue crafted by Singapore's pioneering sculptor, Ng Eng Teng.

This statue was a gift to commemorate the Thai monarch's first visit to a foreign land.

Postal archives over 150 years old offer a window into Singapore's culture and tradition.

Brasilia's oldest newsstand is sheltered by a wish-granting tunnel-tree.

A series of tiny artificial islands rich with produce bob atop the surface of the lake.

Constructed on the ruins of a convent, this tower saved countless lives.

The outside of this exposed Moche pyramid is covered with striking colorful adobe friezes.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

The large collection of pre-Columbian pottery might make you blush.

This metal tower in the desert provides views of a handful of Nazca geoglyphs.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

The Uros people live on floating reed islands in lake Titicaca.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

A desert that evokes the surreal.

A valley of unique erosion patterns lends to a view like nothing on Earth.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.