At least according to the Guinness World Records.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

The oldest hotel in Nevada.

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

A former Tibetan monk made a name for himself selling some of the best beef momos in New York.

Home to three historic ships from the age of Vikings.

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.

A very classy 1920s-era bar right in Grand Central Station.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Pause for an afternoon fika with sublime Scandinavian cakes and pastries.

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

Dine on Hungarian-Jewish dishes at this multigenerational, family-run institution.

Visit Lima’s one-stop-shop for sustainably sourced and produced Peruvian chocolate.

Established in 1937, the oldest candy shop in New York City boasts a rainbow-colored inventory that would make Willy Wonka envious.

What was once a communal kitchen now serves heaping portions of hearty German fare.

Just off the road outside Baguio, a gigantic lion's head carved into a mountain greets those driving by.

This once rural mansion now sits in the heart of the city.

A state-of-the-art medical facility dedicated to treating beloved birds of prey.

Qatar's oldest market can trace its origins back more than a century.

This vibrant side road in Doha was painted light blue to reduce heat.

This fountain pays homage to Qatar's history of pearling, the primary industry before oil.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

This historic complex is home to the oldest Christian grave in Kolkata, India.