While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

The legendary building that needed ghostly approval before being built.

A modern day curiosity cabinet.

Common all over Japan, kōbans are small community police boxes, and now one is guarding one of L.A.’s megamalls.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

A celebration of capitalism in Midtown.

A crumbling hospital from the 1850s on Roosevelt Island.

Read a book next to a Midtown waterfall.