A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Cars mysteriously roll uphill on this street.

These termites have an large and deadly abode—impressive by day, dazzling by night.

Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A 125-meter long "tribute to the Brazilian people."

An art museum with an eclectic design and a scandalous past.

This Brazilian town built by Freemasons is full of colonial Masonic architecture and symbolic imagery.

An enigmatic mural hiding in plain sight in one of São Paulo's busiest metro stations.

This singular art museum in São Paulo is unique inside and out.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

One of the few remaining temples of the Religion of Humanity.

The longest sea beach in the world can be found on the southern coast of Brazil.

The world-record holder for the longest bridge stretching continuously over water.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

After becoming locally extinct, this esteemed avian now flies free in the forests around the ancient ruins.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

Few of the many visitors to this resort town know of its hidden Maya ruins.

This popular cave pool is truly magical, despite the crowds.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.