A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

Ancient paintings known as the "Sistine Chapel of Cave Art."

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

Site of a classic 19th-century physics experiment to prove the earth is rotating.

A museum of magic with a Sadist past.

A haunting collection of the vanished and disappearing natural world.

Location of the Real World's disastrous, and protested, eleventh season.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

Where dioramas can follow you home.

These pretty kitties killed and ate as many as 135 railway workers.

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

The 606 is a decade in the making.

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

These mansions date back to Chicago's days as a brewer's paradise.

An eccentric park and pool.