Meet some of the most prominent figures in Black history through life-sized wax models.

A hidden alley in urban Baltimore is a haven for graffiti artists.

Eighteen miniature death-scene dioramas.

A museum dedicated to exhibiting remarkable outsider art.

The trials and tribulations of marking Poe's grave.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Home to items never before seen by the public.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This museum houses an imposing skeleton army comprised of creatures great and small.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A mechanized clock where a man fights off a dragon, crab, and rooster.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.