A fake Transylvanian castle houses a cathedral of antlers.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

The United States Capitol's former columns still stand.

A haunting tribute to pioneering photographer Clover Adams.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

An astounding collection of medical specimens, including bits of President Lincoln.

Walk into the 19th century without leaving Brooklyn.

A terrific purveyor of natural history objects and curios.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The site of the climactic scene from the classic horror film is now a historic landmark.

At 207 feet, one of the world's longest continuous escalators.

Two stunning 17th-century libraries and a cabinet of curiosities.

Macabre astrological automaton clock dating to the late 1400s.

This Communist-era residential block is one of the longest residential building in Europe.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Museum dedicated to "the man who moved the Earth."

Relive a Polish uprising via an enormous, century-old cyclorama.

An underground city of salt.