Elevated freight railway turned wildly successful urban park.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

This subterranean funicular is one of the world's smallest subways.

Biblical beasts and endangered animal preservation come together in this Israeli zoo.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

Sitting right on the border between East and West Jerusalem this modern art museum is in itself a symbol of Israel's hoped-for unity.

This amazing ancient cave was kept secret for seven years to protect it from the public.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

A serene desert oasis speckled with ancient artifacts.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

You can row a boat through this ancient underground reservoir.

One of only two commuter aerial tramways in the United States.

A hip bar decorated with walls of golden skulls.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.