Where three rails and three centuries of transportation meet.

In an effort to escape the horrors of slavery, one man mailed himself to freedom.

This family-owned diner has been slinging chili dogs since 1940.

This church was transported brick by brick from the ruins of a 16th-century city into Panama City's current historic district.

A pocket of jungle amidst urban expansion in Panama.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

Finally, you don't have to be a pious Swedish seaman to relax like one.

A very classy 1920s-era bar right in Grand Central Station.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Take a walk through the history of strength sports—from the early Olympic Games to modern day.

This mural pays tribute to Atlanta natives and hip hop legends Andre 3000 and Big Boi, better known as OutKast.

These unusual rooms on wheels are holdovers from the 1960s.

The seat of Buffalo government is a gorgeous Art Deco palace.

A mysterious castle built as a monument to lost love.

Found: Garden of Eden in Miami-Dade County, Florida.

Where monkeys run wild and the humans are caged.

A telegraph station used to send information from Cuba to the U.S. during the Spanish-American War.

This kitsch eatery is chock-a-block with bric-a-brac.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

Read a book next to a Midtown waterfall.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.