A self-taught astronomer fell in love with the stars and built his own observatory in Colombia.

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.

This archeological site hidden behind Teotihuacán's pyramids shelters 1600-year-old murals.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

The colonial city's social history is reflected in its fanciful door knockers.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

This series of waterfalls tumble into a radiantly blue river.

The stoutest tree in the world.

Hundreds of bras, blowing in the wind.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

This Mexico City subway station will make you feel like you've been transported to the London Underground.

This immense scene of a cosmic battle between a jaguar and serpent illustrates the Aztec concept of the duality of life.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

One of the city's most imposing Neoclassical buildings is also one of its most prestigious schools.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

This metal church may or may not have been designed by Alexandre-Gustave Eiffel.

The American rainmaker and a burst dam.