One of the few surviving gates into Old Goa, the former capital of Portuguese India.

Once a passageway that led to the Shaniwar Wada palace fort.

An ancient wall in the shadows of the Amber Castle.

A 19th-century mansion with a Gothic entrance in the center of Pune.

Now a small lake, stone quarried from this spot was used to build the local university building.

No passport is required to eat around the world at this elegant restaurant.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

This 19th-century prison once held Irish revolutionary Constance Markievicz, writer Frank O’Connor, and a nine-year-old pickpocket.

A meow-velous tribute to a beloved street cat, made famous on the internet.

1513 Turkish world map, full of European state secrets and snarky commentary.

Turkish adventurer antiques in the heart of the Grand Bazaar.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Since 1768, the pillar at Guildhall Market in Bath has been a hub of economic transactions.

A 1,000-foot-long railroad tunnel under Shavers Fork connected the towns during West Virginia's logging boom until its closure in 1985.

Somber memorial to the May 10, 1933, book-burning which took place on this spot.

A small mountain made entirely of banded iron stone overlooking downtown Ishpeming.

Home to over 1,000 street signs, this museum offers visitors an opportunity to travel over 70 years back in time.

These secretive tunnels were once the site of a Royal Air Force fuel reserve depot.

Over 300 historical instruments from around the world can be found in the Royal Northern College of Music's basement.

This ledge in Victoria Park served as a hiding spot for Frodo, Sam, Merry and Pippin.

The United States' only educational center specializing in disease vectors and mosquitoes.

A telegraph station used to send information from Cuba to the U.S. during the Spanish-American War.

The last remains of a long-demolished estate.

The wreck of a World War II cargo ship has become an unintentional time capsule at the bottom of the Red Sea.