This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

This quirky piece of naval artillery has been deafening Canadians for over a century.

This Chase branch is an homage to Old Hollywood.

This magnificent Cincinnati graveyard is also a popular public park.

This hidden Sufi cemetery is a spiritual monument for India's third gender community.

An unassuming tomb houses an important milestone in Indian architectural history.

This ruined relic of the medieval city of Jahanpanah is a quiet oasis in the middle of New Delhi.

India's first open-air public art district sits in the heart of the country's capital.

Ancient traditions and surreal birdwatching come into sharp relief along one of the world's most polluted rivers.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

An ancient iron pillar in Delhi that seems to be rustproof.

A blooming house of worship for the masses.

A startling, centuries-old subterranean marvel hides in plain sight.

This Sri Lankan cemetery is the final resting place of sci-fi legend Sir Arthur C. Clarke.

This beautiful 16th-century necropolis marks an astonishing feat in heritage conservation.

Nestled among the artifacts of the National Crafts Museum, this hidden gem offers hard-to-find regional foods from all over India.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

Where beautiful signs live on forever.

A giant Troll lurks under one of Seattle's oldest bridges.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.