Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

Immortalized in bronze, this frazzled student will be glued to his screen for centuries.

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Now a public art piece, this curious metal feature originally advertised a tinsmith's services.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This crumbling industrial fortress has attracted daredevils, filmmakers, and historians.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

Two thirds of this Montreal neon icon has survived to flash another day.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A complex and beautiful system of rice terraces covers a million acres over the mountains.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Largest Roman Catholic church in North America.

The "lovely red Vega" of the legendary record-settling pilot.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

A celebrity from the late Cretaceous period.