Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

The ruins of the first Spanish settlement in Puerto Rico.

This colorful gate stands as an entrance to the walled city of Old San Juan.

A park where people have been going to feed friendly pigeons since the 18th century

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Large collection from the 3rd millennium BCE.

The ruined doorway is a portal to the building's turbulent and torturous past.

A sharp sculpture made of thousands of pieces of jagged glass.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

Monasteries on rock pillars, once accessible only by frayed ropes.

Believed to be the only Orthodox church in the world that features a free-standing pulpit.

One of the most photographed locations in the entire city.

A two thousand year old brothel uncovered in Northern Greece.

A massive collection of rare and antique books in a tiny ranching community in northern Texas.

World's smallest skyscraper, the product of a remarkable con.

Catch two 18-foot-tall ranchers mid-brawl as you drive by on Highway 285.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

The cardinal directions, set in stone.

Housing a morgue, rare and confiscated weapons, and autopsy remains, the Vancouver police museum displays the dark side of Canada.

Tacoma's historic Beaux-Arts train station is now a federal courthouse featuring large-scale glass sculptures by artist Dale Chihuly.

This three-story antique market and curiosity emporium claims to be "the largest singly owned antique shop in the Pacific Northwest."