A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The largest Chinese cemetery in the world outside of China dates back to the 15th century.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Once a black market electronics marketplace, now an otaku shopper's paradise.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The "Seinfeld" diner.

London's smallest police station is barely the size of a phone booth.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

Roadside display for a popular fruit and vegetable stand.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

This recently uncovered ad for Lindsay's run at Mayor in 1965 had been hiding for decades underneath a billboard.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

A crucified and bearded female saint.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Macabre astrological automaton clock dating to the late 1400s.