Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

An abstract monument to a symphonic composer.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A subterranean house of worship carved right out of the bedrock.

Wine bottle sculpture with a ship's stateroom inside.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

With a history dating back to Victorian times, this architectural gem is a rare New York tourist haunt worth visiting.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Here be dragons.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

This impressive scene portrays the elusive forest giraffe of Central Africa.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

This morbid scene depicts the Darwinian drama of death on the African savannah.

This poignant display is now a memorial to these regionally extinct species.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The longest step street in the city.

A monument stands to the famous suffragist who penned the declaration for women's equal rights, including the right to vote.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.