Baltimore's first skyscraper may be home to the inspiration behind pulp fiction's most celebrated bird.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

One of the first Second Empire-style buildings constructed in North America.

Largest Roman Catholic church in North America.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The walls of the iconic dome are hollow and have a secret stairway.

The rubbery beast is sculpted from recycled materials.

Vast stretch of tide-pools with a unique Moroccan charm.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

Traditional 11th-century outdoor tannery.

Crumbling necropolis set high above Fez.

Mosaics, storks, and brothels—this ancient city has it all.

One of the few places to grab a beer in Fez is a former British consulate.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

The designated Jewish quarter in Fez dates back to the 15th century.

This former royal palace with gorgeous gardens became the first museum in Morocco.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The oldest known university in the world is in Fez, Morocco.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.