The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

A white Buddhist temple with a golden restroom.

The best place in the world to buy tinned fish.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Minimalist modern art on a repurposed military base in rural Texas.

A Prada store in the West Texas desert that is never open for business.

France's national museum of scientific and industrial instruments.