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

This park feels like a lush little jungle full of wildlife nestled within São Paulo.

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

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

What killed this humpback whale is a mystery, but its remains have become legendary.

Striking ruins of a mansion that stood center stage in one of modern Brazil's most puzzling crimes.

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

The ruins of this Brazilian island prison still bear the scars of the bloody rebellion that closed it down.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

The bookstore with bookshelves built into unlikely places.

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

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

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

One of the world's heaviest musical instruments towers within a popular urban park.

Metro station with a claim to rock n' roll fame.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Tiny memorials honor individual victims of the Holocaust.

Cold war icon and onetime "hole" in the iron curtain.

A monument to the man who almost killed Hitler.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Berlin's old airport.