The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

This seaside Scottish holiday rental lets you live out your bookselling dreams.

Thousands of colorful pirogues showcase ingenious craftsmanship at the largest fishermen port in Nouakchott.

One of Europe's largest groups of dolmens remains largely off the typical tourist track.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

The 19th-century hacienda house is filled with Aztec sculptures.

A tiny mosque decorated with mosaics using an early form of recycling.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

This museum was invented in a novel before being made real by the author.

A memorial to a shareholder activist feared by CEOs around the United States.

This grisly headstone doesn’t seem to be resting in peace.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

This nine-story building is the oldest standing skyscraper in D.C.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

When it comes to handsignals (and colonialism) rock always beats scissors.

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

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.