Home to a vast and influential collection of Shakespeareana.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

This sidewalk tribute honors Colorado's great culinary creation.

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

The 28,000-year-old specimen is remarkably intact.

Every drop of D.C. tap water flows through this old waterworks.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

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

A super-sized promotional trick that is now a D.C. landmark.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

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

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

A sprawling ancient Jewish cemetery with over 30 rock-hewn burial caves.

A serene desert oasis speckled with ancient artifacts.

This small monument marks the divide between the Atlantic and Indian Oceans at the southernmost tip of Africa.

One of the largest underground systems runs under Canada's largest urban center.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

Built for the 1962 World Cup, this fully functioning botanical clock is still ticking.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.