An annual extravaganza of Broadway theater memorabilia.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

Inspiration struck on this seat outside the Griffith Park merry-go-round.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

The blinking light atop the iconic landmark has been sending secret messages for decades.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

An enormous illuminated figure dances on the Las Vegas strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This former train station was once an important shipping depot for the regions farmers.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

The only surviving 19th-century water-powered mill found in the Washington, D.C. area.

The romance of early commercial flight still fills this Art Deco destination.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A historic arena where the Beatles played their first concert in the U.S.

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

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

One of many gator theme parks, abandoned in the sugar fields of South Florida.

These caves secretly held national treasures during World War II.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Where commuters walk through remnants of an ancient Greek necropolis.

New York's southernmost subway station is whimsically wavy.

An unassuming secret door once led to a legendary watering hole.