This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This suburban house is made of dirt, and almost sparked a revolution in home construction.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

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

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

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Africa's Venice on stilts.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

A geometric jumble of homes.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

The only quarter of the Old City not dedicated to a major world religion.

This nightmarish children's plaything was left grotesque to help kids conquer their fear.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

A former suicide bridge is now accumulating symbols of love instead of a body count.

It houses the remains of a 17th-century version of the Titanic.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.