A Tudor-style castle in Brazil holds one of the world's largest armory collections.

Deep below the dry landscape of Bahia, a cave with intense blue water to float in.

This peak in Chapada Diamantina National Park offers the most stunning sunsets.

A natural waterslide in Brazil’s most expansive national park.

This stone monument marks the beginning of Portugal's presence in Brazil.

A futuristic rocket marks the spot where three borders meet.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

A vast Communist-era exhibition space in the Bulgarian capital.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

This historic black and white monastery is one of Bulgaria's architectural jewels.

The bookstore with bookshelves built into unlikely places.

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

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

The largest library in Latin America owes its existence to an Old World earthquake and a Napoleonic invasion.

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

Beautiful public park off the beaten path and away from tourists.

Museum precariously perched on a massive yellow pillar.

Solitary monument dedicated to the beauty of nature.